for Journals by Title or ISSN
for Articles by Keywords
help
  Subjects -> ENGINEERING (Total: 2358 journals)
    - CHEMICAL ENGINEERING (201 journals)
    - CIVIL ENGINEERING (192 journals)
    - ELECTRICAL ENGINEERING (107 journals)
    - ENGINEERING (1240 journals)
    - ENGINEERING MECHANICS AND MATERIALS (394 journals)
    - HYDRAULIC ENGINEERING (56 journals)
    - INDUSTRIAL ENGINEERING (72 journals)
    - MECHANICAL ENGINEERING (96 journals)

ENGINEERING (1240 journals)                  1 2 3 4 5 6 7 | Last

Showing 1 - 200 of 1205 Journals sorted alphabetically
3 Biotech     Open Access   (Followers: 8)
3D Research     Hybrid Journal   (Followers: 20)
AAPG Bulletin     Hybrid Journal   (Followers: 8)
AASRI Procedia     Open Access   (Followers: 14)
Abstract and Applied Analysis     Open Access   (Followers: 3)
Aceh International Journal of Science and Technology     Open Access   (Followers: 2)
ACS Nano     Full-text available via subscription   (Followers: 268)
Acta Geotechnica     Hybrid Journal   (Followers: 7)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 6)
Acta Polytechnica : Journal of Advanced Engineering     Open Access   (Followers: 3)
Acta Scientiarum. Technology     Open Access   (Followers: 3)
Acta Universitatis Cibiniensis. Technical Series     Open Access  
Active and Passive Electronic Components     Open Access   (Followers: 7)
Adaptive Behavior     Hybrid Journal   (Followers: 11)
Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi     Open Access  
Adsorption     Hybrid Journal   (Followers: 4)
Advanced Engineering Forum     Full-text available via subscription   (Followers: 7)
Advanced Science     Open Access   (Followers: 5)
Advanced Science Focus     Free   (Followers: 5)
Advanced Science Letters     Full-text available via subscription   (Followers: 9)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 7)
Advanced Synthesis & Catalysis     Hybrid Journal   (Followers: 18)
Advances in Calculus of Variations     Hybrid Journal   (Followers: 2)
Advances in Catalysis     Full-text available via subscription   (Followers: 5)
Advances in Complex Systems     Hybrid Journal   (Followers: 6)
Advances in Engineering Software     Hybrid Journal   (Followers: 27)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 15)
Advances in Fuzzy Systems     Open Access   (Followers: 5)
Advances in Geosciences (ADGEO)     Open Access   (Followers: 13)
Advances in Heat Transfer     Full-text available via subscription   (Followers: 21)
Advances in Human Factors/Ergonomics     Full-text available via subscription   (Followers: 23)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 9)
Advances in Natural Sciences: Nanoscience and Nanotechnology     Open Access   (Followers: 29)
Advances in Operations Research     Open Access   (Followers: 12)
Advances in OptoElectronics     Open Access   (Followers: 5)
Advances in Physics Theories and Applications     Open Access   (Followers: 13)
Advances in Polymer Science     Hybrid Journal   (Followers: 43)
Advances in Porous Media     Full-text available via subscription   (Followers: 5)
Advances in Remote Sensing     Open Access   (Followers: 43)
Advances in Science and Research (ASR)     Open Access   (Followers: 4)
Aerobiologia     Hybrid Journal   (Followers: 2)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 6)
AIChE Journal     Hybrid Journal   (Followers: 35)
Ain Shams Engineering Journal     Open Access   (Followers: 5)
Akademik Platform Mühendislik ve Fen Bilimleri Dergisi     Open Access   (Followers: 1)
Alexandria Engineering Journal     Open Access   (Followers: 1)
AMB Express     Open Access   (Followers: 1)
American Journal of Applied Sciences     Open Access   (Followers: 26)
American Journal of Engineering and Applied Sciences     Open Access   (Followers: 10)
American Journal of Engineering Education     Open Access   (Followers: 9)
American Journal of Environmental Engineering     Open Access   (Followers: 16)
American Journal of Industrial and Business Management     Open Access   (Followers: 23)
Analele Universitatii Ovidius Constanta - Seria Chimie     Open Access  
Annals of Combinatorics     Hybrid Journal   (Followers: 3)
Annals of Pure and Applied Logic     Open Access   (Followers: 2)
Annals of Regional Science     Hybrid Journal   (Followers: 7)
Annals of Science     Hybrid Journal   (Followers: 7)
Antarctic Science     Hybrid Journal   (Followers: 1)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2)
Applicable Analysis: An International Journal     Hybrid Journal   (Followers: 1)
Applied Catalysis A: General     Hybrid Journal   (Followers: 6)
Applied Catalysis B: Environmental     Hybrid Journal   (Followers: 18)
Applied Clay Science     Hybrid Journal   (Followers: 5)
Applied Computational Intelligence and Soft Computing     Open Access   (Followers: 11)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 4)
Applied Nanoscience     Open Access   (Followers: 8)
Applied Network Science     Open Access   (Followers: 3)
Applied Numerical Mathematics     Hybrid Journal   (Followers: 5)
Applied Physics Research     Open Access   (Followers: 5)
Applied Sciences     Open Access   (Followers: 3)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 4)
Arabian Journal for Science and Engineering     Hybrid Journal   (Followers: 5)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 5)
Archives of Foundry Engineering     Open Access  
Archives of Thermodynamics     Open Access   (Followers: 8)
Arkiv för Matematik     Hybrid Journal   (Followers: 1)
ASEE Prism     Full-text available via subscription   (Followers: 3)
Asia-Pacific Journal of Science and Technology     Open Access  
Asian Engineering Review     Open Access  
Asian Journal of Applied Science and Engineering     Open Access   (Followers: 1)
Asian Journal of Applied Sciences     Open Access   (Followers: 2)
Asian Journal of Biotechnology     Open Access   (Followers: 8)
Asian Journal of Control     Hybrid Journal  
Asian Journal of Current Engineering & Maths     Open Access  
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 8)
Assembly Automation     Hybrid Journal   (Followers: 2)
at - Automatisierungstechnik     Hybrid Journal   (Followers: 1)
ATZagenda     Hybrid Journal  
ATZextra worldwide     Hybrid Journal  
Australasian Physical & Engineering Sciences in Medicine     Hybrid Journal   (Followers: 1)
Australian Journal of Multi-Disciplinary Engineering     Full-text available via subscription   (Followers: 2)
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 9)
Avances en Ciencias e Ingeniería     Open Access  
Balkan Region Conference on Engineering and Business Education     Open Access   (Followers: 1)
Bangladesh Journal of Scientific and Industrial Research     Open Access  
Basin Research     Hybrid Journal   (Followers: 5)
Batteries     Open Access   (Followers: 6)
Bautechnik     Hybrid Journal   (Followers: 1)
Bell Labs Technical Journal     Hybrid Journal   (Followers: 26)
Beni-Suef University Journal of Basic and Applied Sciences     Open Access   (Followers: 4)
BER : Manufacturing Survey : Full Survey     Full-text available via subscription   (Followers: 1)
BER : Motor Trade Survey     Full-text available via subscription  
BER : Retail Sector Survey     Full-text available via subscription   (Followers: 1)
BER : Retail Survey : Full Survey     Full-text available via subscription   (Followers: 1)
BER : Survey of Business Conditions in Manufacturing : An Executive Summary     Full-text available via subscription   (Followers: 2)
BER : Survey of Business Conditions in Retail : An Executive Summary     Full-text available via subscription   (Followers: 3)
Bhakti Persada : Jurnal Aplikasi IPTEKS     Open Access  
Bharatiya Vaigyanik evam Audyogik Anusandhan Patrika (BVAAP)     Open Access   (Followers: 1)
Biofuels Engineering     Open Access   (Followers: 1)
Biointerphases     Open Access   (Followers: 1)
Biomaterials Science     Full-text available via subscription   (Followers: 10)
Biomedical Engineering     Hybrid Journal   (Followers: 15)
Biomedical Engineering and Computational Biology     Open Access   (Followers: 13)
Biomedical Engineering Letters     Hybrid Journal   (Followers: 5)
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 19)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 35)
Biomedical Engineering: Applications, Basis and Communications     Hybrid Journal   (Followers: 5)
Biomedical Microdevices     Hybrid Journal   (Followers: 9)
Biomedical Science and Engineering     Open Access   (Followers: 4)
Biomedizinische Technik - Biomedical Engineering     Hybrid Journal  
Biomicrofluidics     Open Access   (Followers: 4)
BioNanoMaterials     Hybrid Journal   (Followers: 2)
Biotechnology Progress     Hybrid Journal   (Followers: 39)
Boletin Cientifico Tecnico INIMET     Open Access  
Botswana Journal of Technology     Full-text available via subscription   (Followers: 1)
Boundary Value Problems     Open Access   (Followers: 1)
Brazilian Journal of Science and Technology     Open Access   (Followers: 2)
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 10)
Bulletin of Canadian Petroleum Geology     Full-text available via subscription   (Followers: 13)
Bulletin of Engineering Geology and the Environment     Hybrid Journal   (Followers: 14)
Bulletin of the Crimean Astrophysical Observatory     Hybrid Journal  
Cahiers, Droit, Sciences et Technologies     Open Access  
Calphad     Hybrid Journal  
Canadian Geotechnical Journal     Hybrid Journal   (Followers: 31)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 42)
Case Studies in Engineering Failure Analysis     Open Access   (Followers: 6)
Case Studies in Thermal Engineering     Open Access   (Followers: 5)
Catalysis Communications     Hybrid Journal   (Followers: 6)
Catalysis Letters     Hybrid Journal   (Followers: 2)
Catalysis Reviews: Science and Engineering     Hybrid Journal   (Followers: 7)
Catalysis Science and Technology     Free   (Followers: 8)
Catalysis Surveys from Asia     Hybrid Journal   (Followers: 3)
Catalysis Today     Hybrid Journal   (Followers: 7)
CEAS Space Journal     Hybrid Journal   (Followers: 2)
Cellular and Molecular Neurobiology     Hybrid Journal   (Followers: 3)
Central European Journal of Engineering     Hybrid Journal  
CFD Letters     Open Access   (Followers: 6)
Chaos : An Interdisciplinary Journal of Nonlinear Science     Hybrid Journal   (Followers: 2)
Chaos, Solitons & Fractals     Hybrid Journal   (Followers: 3)
Chinese Journal of Catalysis     Full-text available via subscription   (Followers: 2)
Chinese Journal of Engineering     Open Access   (Followers: 2)
Chinese Science Bulletin     Open Access   (Followers: 1)
Ciencia e Ingenieria Neogranadina     Open Access  
Ciencia en su PC     Open Access   (Followers: 1)
Ciencias Holguin     Open Access   (Followers: 2)
CienciaUAT     Open Access   (Followers: 1)
Cientifica     Open Access  
CIRP Annals - Manufacturing Technology     Full-text available via subscription   (Followers: 11)
CIRP Journal of Manufacturing Science and Technology     Full-text available via subscription   (Followers: 13)
City, Culture and Society     Hybrid Journal   (Followers: 20)
Clay Minerals     Full-text available via subscription   (Followers: 10)
Clean Air Journal     Full-text available via subscription   (Followers: 1)
Coal Science and Technology     Full-text available via subscription   (Followers: 3)
Coastal Engineering     Hybrid Journal   (Followers: 11)
Coastal Engineering Journal     Hybrid Journal   (Followers: 5)
Coatings     Open Access   (Followers: 4)
Cogent Engineering     Open Access   (Followers: 2)
Cognitive Computation     Hybrid Journal   (Followers: 4)
Color Research & Application     Hybrid Journal   (Followers: 2)
COMBINATORICA     Hybrid Journal  
Combustion Theory and Modelling     Hybrid Journal   (Followers: 14)
Combustion, Explosion, and Shock Waves     Hybrid Journal   (Followers: 13)
Communications Engineer     Hybrid Journal   (Followers: 1)
Communications in Numerical Methods in Engineering     Hybrid Journal   (Followers: 2)
Components, Packaging and Manufacturing Technology, IEEE Transactions on     Hybrid Journal   (Followers: 28)
Composite Interfaces     Hybrid Journal   (Followers: 7)
Composite Structures     Hybrid Journal   (Followers: 274)
Composites Part A : Applied Science and Manufacturing     Hybrid Journal   (Followers: 212)
Composites Part B : Engineering     Hybrid Journal   (Followers: 246)
Composites Science and Technology     Hybrid Journal   (Followers: 184)
Comptes Rendus Mécanique     Full-text available via subscription   (Followers: 2)
Computation     Open Access  
Computational Geosciences     Hybrid Journal   (Followers: 15)
Computational Optimization and Applications     Hybrid Journal   (Followers: 7)
Computational Science and Discovery     Full-text available via subscription   (Followers: 2)
Computer Applications in Engineering Education     Hybrid Journal   (Followers: 8)
Computer Science and Engineering     Open Access   (Followers: 19)
Computers & Geosciences     Hybrid Journal   (Followers: 30)
Computers & Mathematics with Applications     Full-text available via subscription   (Followers: 8)
Computers and Electronics in Agriculture     Hybrid Journal   (Followers: 5)
Computers and Geotechnics     Hybrid Journal   (Followers: 11)
Computing and Visualization in Science     Hybrid Journal   (Followers: 6)
Computing in Science & Engineering     Full-text available via subscription   (Followers: 33)
Conciencia Tecnologica     Open Access  
Concurrent Engineering     Hybrid Journal   (Followers: 3)
Continuum Mechanics and Thermodynamics     Hybrid Journal   (Followers: 8)
Control and Dynamic Systems     Full-text available via subscription   (Followers: 9)
Control Engineering Practice     Hybrid Journal   (Followers: 43)
Control Theory and Informatics     Open Access   (Followers: 8)
Corrosion Science     Hybrid Journal   (Followers: 25)

        1 2 3 4 5 6 7 | Last

Journal Cover Corrosion Science
  [SJR: 1.931]   [H-I: 130]   [25 followers]  Follow
    
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 0010-938X
   Published by Elsevier Homepage  [3177 journals]
  • Corrosion of copper in pure O2-free water'
    • Authors: Allan Hedin; Adam Johannes Johansson; Christina Lilja; Mats Boman; Pedro Berastegui; Rolf Berger; Mikael Ottosson
      Pages: 1 - 12
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): Allan Hedin, Adam Johannes Johansson, Christina Lilja, Mats Boman, Pedro Berastegui, Rolf Berger, Mikael Ottosson
      Copper exposed to pure, O2-free water for several months in glass- and metal-contained, well-controlled systems shows no evidence of corrosion, either through hydrogen evolution or through the occurrence of oxidized copper. The results contradict the interpretation of recent experiments where it has been claimed that copper corrodes in pure, O2-free water far above the very limited extent predicted by established thermodynamic data. Reasons for the different experimental outcomes are discussed. Experimental and theoretical efforts to identify hitherto unknown, potentially corrosion driving species of the Cu-O-H system and studies of copper/water surface reactions are reviewed as background for the present study.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.02.008
      Issue No: Vol. 137 (2018)
       
  • Development and characterisation of zinc oxalate conversion coatings on
           zinc
    • Authors: J.M. Ferreira; M. Oliveira; G.F. Trindade; L.C.L. Santos; C.R. Tomachuk; M.A. Baker
      Pages: 13 - 32
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): J.M. Ferreira, M. Oliveira, G.F. Trindade, L.C.L. Santos, C.R. Tomachuk, M.A. Baker
      The interactions between oxalic acid and zinc substrates have been studied through the deposition of zinc oxalate coating by immersion. The corrosion behaviour of zinc was investigated by surface observation and electrochemical impedance spectroscopy (EIS). Better protective properties were observed for samples treated with 10−1 M oxalic acid compared to other concentrations and the enrichment of corrosion product by Na was observed. The electrochemical results reveal that the oxalate coating increases corrosion protection in corrosive medium. It is proposed that the zinc oxalate coating formed act as a basis for anchoring zinc corrosion products forming simonkolleite improving corrosion resistance.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.011
      Issue No: Vol. 137 (2018)
       
  • DFT study of imidazoles adsorption on the grain boundary of Cu (100)
           surface
    • Authors: Hongbo Wang; Yilei Hao; Shenghui Chen; Meng Cheng; Chunling Li; Shuangqing Sun; Songqing Hu
      Pages: 33 - 42
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): Hongbo Wang, Yilei Hao, Shenghui Chen, Meng Cheng, Chunling Li, Shuangqing Sun, Songqing Hu
      Density functional theory was used to investigate the adsorption of imidazole (IMD), benzotriazole (BTAH) and 2-mercaptobenzoxazole (MBO) on the grain boundary (GB) of Cu (100) surface. Results show that molecules prefer to adsorb on the grain boundary with the larger distortion degree and more adsorption sites. The main interaction of molecules and grain boundary is chemisorption through C, N, SCu bonds in both perpendicular and parallel modes. Hydrogen bonds and the lateral dipole-dipole interactions are also found. Based on the adsorption behaviour, the coverage effect and charge redistribution might be two possible inhibition mechanisms of inhibitor molecules.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.009
      Issue No: Vol. 137 (2018)
       
  • Effect of composition and microstructure of duplex stainless steel on
           adsorption behaviour and efficiency of corrosion inhibitors in 4 molar
           hydrochloric acid. Part I: Standard DSS 2205
    • Authors: Man Yi Ho; Jill Geddes; Evgeny Barmatov; Lynne Crawford; Trevor Hughes
      Pages: 43 - 52
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): Man Yi Ho, Jill Geddes, Evgeny Barmatov, Lynne Crawford, Trevor Hughes
      We investigate relationships between the elemental composition and microstructure of DSS 2205 materials and their acid corrosion behaviour (4 M HCl) in the absence and presence of inhibitor (naphthylmethyl quinolinium chloride, NMQCl). Without inhibitor, the corrosion rate decreases with increasing Ni and austenite content. The austenite content is mainly controlled by Ni and N contents. In the presence of inhibitor, at concentrations 4–11.1 mM, the corrosion rate decreases with increasing Ni content and inhibition efficiencies are 94.5–99%. When the inhibitor dosage is 20 mM, the corrosion rate becomes independent of Ni content and inhibition efficiencies are ≥99%.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.022
      Issue No: Vol. 137 (2018)
       
  • The effect of yttrium addition on the air oxidation behavior of
           Zr-Cu-Ni-Al bulk metallic glasses at 400–500 °C
    • Authors: Shuaidan Lu; Shuchen Sun; Ganfeng Tu; Xiaoxiao Huang; Kuanhe Li
      Pages: 53 - 61
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): Shuaidan Lu, Shuchen Sun, Ganfeng Tu, Xiaoxiao Huang, Kuanhe Li
      Zr53.8Cu29.1Ni7.3Al9.8 bulk metallic glass (ZCNA-BMG) and Zr52.8Cu29.1Ni7.3Al9.8Y1 bulk metallic glass (ZCNAY-BMG) were taken to elucidate the kinetic mechanism for the improvement in oxidation resistance upon the addition of yttrium over the temperature range of 400–500 °C. The oxidation kinetics of two BMGs both followed a multiple-stage parabolic-rate law, wherein ZCNAY-BMG exhibited a lower k p and thinner scales consisting of t-ZrO2, m-ZrO2, CuO, AlNi3, Y2O3 and some Al2O3 at T  ≥ 450 °C. The Al2O3 phase was only observed in the scale of ZCNAY-BMG at 450 °C due to the crystallization, and resulted in the much lower oxidation rate.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.024
      Issue No: Vol. 137 (2018)
       
  • Corrosion of mild steel in hydrochloric acid solution in the presence of
           two cationic gemini surfactants with and without hydroxyl substituted
           spacers
    • Authors: Mohammad Mahdavian; Ali Reza Tehrani-Bagha; Eiman Alibakhshi; Shabnam Ashhari; Mohammad Javad Palimi; Sajad Farashi; Soheila Javadian; Fatemeh Ektefa
      Pages: 62 - 75
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): Mohammad Mahdavian, Ali Reza Tehrani-Bagha, Eiman Alibakhshi, Shabnam Ashhari, Mohammad Javad Palimi, Sajad Farashi, Soheila Javadian, Fatemeh Ektefa
      The corrosion inhibition mechanism of mild steel in acidic solution and in the presence of two cationic gemini surfactants have been studied. These are two surfactants having 12-carbon hydrophobic tails: one with a tetramethylene spacer and the other one with the same spacer containing two hydroxyl groups. EIS and polarization and electrochemical noise measurements revealed superior corrosion inhibition of hydroxyl functional surfactant compared with its counterpart with no hydroxyl group. Surface analysis including AFM, and SEM confirmed less corrosion attacks on the sample exposed to hydroxyl functional surfactant solution. Quantum chemical parameters revealed a good correlation with electrochemical results.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.034
      Issue No: Vol. 137 (2018)
       
  • Embrittlement and aging at 475 °C in an experimental superferritic
           stainless steel with high molybdenum content
    • Authors: Lorena Braga Moura; Hamilton Ferreira Gomes de Abreu; Walney Silva Araújo; João Felipe Bastos Franco; Michael Carneiro Sampaio; Francisco Eric Rodrigues Maurício
      Pages: 76 - 82
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): Lorena Braga Moura, Hamilton Ferreira Gomes de Abreu, Walney Silva Araújo, João Felipe Bastos Franco, Michael Carneiro Sampaio, Francisco Eric Rodrigues Maurício
      Superferritic steels are characterized by high Cr content (exceeding 25 wt.%) with addition of Mo. They were originally developed for use in heat exchangers and marine environments. Current trend to use these alloys in the oil industry drives the research on effect of the increased Mo content on the microstructure of these steels. Mo increases the resistance to naphthenic corrosion. The α'(alpha prime) phase precipitation, typical in Fe-Cr system, causes Cr depletion in the ferritic matrix which decreases the corrosion resistance, toughness and increases hardness of steels. This phase is rich in Cr, has paramagnetic properties and occurs in the temperature range between 350 and 550 °C. The influence of increase of Mo content and Ni addition is investigated in the temperature range of α' phase precipitation in experimental Superferritic stainless steel FeCrMoNi with different compositions. An initial analysis was performed with Thermo-Calc® (TCFE6). Samples were subjected to aging treatment for different time and temperatures. Results of micro hardness tests, magnetic measurements (by means of ferritoscope) and corrosion test, were used to study the precipitation behaviour of α′ phase. The results were compared with solution annealed samples and results obtained from the Thermo-Calc® calculation.
      Graphical abstract image

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.033
      Issue No: Vol. 137 (2018)
       
  • Simulation of stress-assisted localised corrosion using a cellular
           automaton finite element approach
    • Authors: O.O. Fatoba; R. Leiva-Garcia; S.V. Lishchuk; N.O. Larrosa; R. Akid
      Pages: 83 - 97
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): O.O. Fatoba, R. Leiva-Garcia, S.V. Lishchuk, N.O. Larrosa, R. Akid
      In this paper, the overall corrosion damage process is modelled sequentially using cellular automata (CA) to describe the localised corrosion component, and finite element analysis (FEA) to account for the mechanical component resulting from the stress concentration effect of the corrosion defect (pit). Synchronous execution of the CA and FEA, and provision of feedback between both provides a good approximation of stress-assisted pit development. Qualitative and quantitative comparison of simulation results with experimental measurements show good agreement. In particular, the model shows that mechanical effects, notably plastic strain, accelerates the rate of development of localised corrosion.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.029
      Issue No: Vol. 137 (2018)
       
  • Electrical properties of iron corrosion layers formed in anoxic
           environments at the nanometer scale
    • Authors: Florence Mercier-Bion; Jiaying Li; Hélène Lotz; Ludovic Tortech; Delphine Neff; Philippe Dillmann
      Pages: 98 - 110
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): Florence Mercier-Bion, Jiaying Li, Hélène Lotz, Ludovic Tortech, Delphine Neff, Philippe Dillmann
      The electrical properties of the corrosion layers on archaeological iron artefacts were determined by Conductive Atomic Force Microscopy. Different corrosion products were studied: FeII carbonates, magnetite entrapped in the carbonate, and iron sulfides. The results indicate that the ferrous carbonate matrix is insulating, and that magnetite and iron sulfides have a conductive character, although these phases are not systematically connected to the metal. This suggests that electrons produced by the anodic dissolution of metal would be conducted to the external part of the corrosion product layer through a three-dimensional network of connected magnetite strips passing through the ferrous carbonate matrix.
      Graphical abstract image

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.028
      Issue No: Vol. 137 (2018)
       
  • Polyaniline-cerium oxide (PAni-CeO2) coated graphene oxide for enhancement
           of epoxy coating corrosion protection performance on mild steel
    • Authors: Bahram Ramezanzadeh; Ghasem Bahlakeh; Mohammad Ramezanzadeh
      Pages: 111 - 126
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): Bahram Ramezanzadeh, Ghasem Bahlakeh, Mohammad Ramezanzadeh
      In this study the polyaniline (PAni) nanofibers-CeO2 grafted graphene oxide nanosheets were synthesized through a Layer-by-Layer (L-b-L) assembly approach and characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction analysis (XRD), thermal gravimetric analysis (TGA), UV–vis spectroscopy, and field-emission scanning electron microscopy (FE-SEM). The GO-PAni-CeO2 nanosheets were incorporated into the epoxy matrix, applied on mild steel, immersed in chloride solution (3.5 wt.%), and characterized by salt spray and electrochemical impedance spectroscopy (EIS). Results revealed that both barrier and active corrosion inhibition properties of GO nanosheets were enhanced by deposition of PAni and CeO2 compounds.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.038
      Issue No: Vol. 137 (2018)
       
  • Electrochemical impedance spectroscopy of scribed coated steel after salt
           spray testing
    • Authors: E.D. Kiosidou; A. Karantonis; G.N. Sakalis; D.I. Pantelis
      Pages: 127 - 150
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): E.D. Kiosidou, A. Karantonis, G.N. Sakalis, D.I. Pantelis
      In the present study, various representative models of finite length diffusion impedance were examined, in order to find the optimum description for dissolved oxygen diffusion, during corrosion of scribed coated steel in cyclic salt spray conditions, at 6, 8 and 12-week intervals. Modified restricted diffusion fitted the experimental data after 6 and 8 weeks and modified restricted or modified transmissive could fit the data after 12 weeks, accompanied by a decrease in corrosion resistance. Oxygen would diffuse through the porous corrosion layer and reduce on the magnetite layer, lying on top of the electrode surface.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.037
      Issue No: Vol. 137 (2018)
       
  • Effect of water content on the corrosion behavior of X65 pipeline steel in
           supercritical CO2-H2O-O2-H2S-SO2 environment as relevant to CCS
           application
    • Authors: Chong Sun; Jianbo Sun; Subiao Liu; Yong Wang
      Pages: 151 - 162
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): Chong Sun, Jianbo Sun, Subiao Liu, Yong Wang
      The water content limit of 1500 ppmv is obtained in supercritical CO2 streams containing 200 ppmv O2, 200 ppmv SO2 and 200 ppmv H2S at 10 MPa and 50 °C. Concurrently, the thermodynamic calculation suggests that impurities change the corrosion process through promoting the water precipitation and changing the water chemistry characteristics. When the water content is below 1500 ppmv, the corrosion effect of impurity interactions dominates the corrosion process of X65 steel. Whereas upon increasing the water content over 1500 ppmv, the corrosion effects from impurity interactions and individual impurity jointly control the corrosion process of X65 steel.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.041
      Issue No: Vol. 137 (2018)
       
  • Influence of environmental factors on atmospheric corrosion in dynamic
           environment
    • Authors: Yikun Cai; Yu Zhao; Xiaobing Ma; Kun Zhou; Yuan Chen
      Pages: 163 - 175
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): Yikun Cai, Yu Zhao, Xiaobing Ma, Kun Zhou, Yuan Chen
      This paper studies the effects of relative humidity, temperature, sulphur dioxide, and chlorides on the short-term corrosion behavior in the dynamic environment. A multi-parameter method is developed to characterize the statistical distributions of the environmental factors with high accuracy. The results suggest that TOW (time-of-wetness) should be replaced by temperature and relative humidity distributions. A corrosion model which is combined with physical and empirical knowledge of corrosion is presented and gives more accurate corrosion estimation than using the mean values of the environmental factors and fitting them independently. It is also demonstrated that relative humidity is the most influential factor on corrosion and temperature is secondary. The nonlinearity of their accelerating effects on corrosion rate are remarkable and should be considered in the daily dynamic environment. Sulphur dioxide and chlorides are important accelerating variables and their nonlinear accelerating effects are less significant.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.042
      Issue No: Vol. 137 (2018)
       
  • The anisotropic corrosion behaviour of wire arc additive manufactured
           Ti-6Al-4V alloy in 3.5% NaCl solution
    • Authors: Bintao Wu; Zengxi Pan; Siyuan Li; Dominic Cuiuri; Donghong Ding; Huijun Li
      Pages: 176 - 183
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): Bintao Wu, Zengxi Pan, Siyuan Li, Dominic Cuiuri, Donghong Ding, Huijun Li
      This study investigates the relationships between corrosion resistances, microstructure and phase composition of Ti-6Al-4V components that have been fabricated with the gas tungsten wire arc additive manufacturing (GT-WAAM) process, through the use of electrochemical corrosion testing, optical microscopy, X-ray diffraction and hardness testing. The corrosion behaviour is anisotropic due to corresponding anisotropy in microstructure, phase structure, grain size and orientation within the WAAM-processed Ti-6Al-4V alloy. Compared to ASTM standard wrought Ti-6Al-4V, the WAAM-processed alloy has a slightly inferior corrosion resistance owing to the formation of asymmetrical structures with lamellar α and acicular α’ phases, that display preferred orientation.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.047
      Issue No: Vol. 137 (2018)
       
  • Micro-galvanic corrosion of Cu/Ru couple in potassium periodate (KIO4)
           solution
    • Authors: Jie Cheng; Jinshan Pan; Tongqing Wang; Xinchun Lu
      Pages: 184 - 193
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): Jie Cheng, Jinshan Pan, Tongqing Wang, Xinchun Lu
      This paper focuses on the study of micro-galvanic corrosion of the Cu/Ru couple in KIO4 solution. Practical nobility across the Cu/Ru interface was evaluated by Volta potential mapping, and the morphological changes were monitored by in-situ atomic force microscopy measurements during exposure in a KIO4 solution. Chemical composition of precipitated corrosion product was analyzed by Confocal Raman spectroscopy immediately after the exposure. The results show that Cu is the anode of the Cu/Ru couple, and accelerated dissolution of Cu preferentially occurs near the Cu/Ru interface. However, subsequent formation of insoluble Cu(IO3)2·nH2O leads to precipitation, which impedes further Cu corrosion.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.045
      Issue No: Vol. 137 (2018)
       
  • Bi-modal trending for corrosion loss of steels buried in soils
    • Authors: Robert B. Petersen; Robert E. Melchers
      Pages: 194 - 203
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): Robert B. Petersen, Robert E. Melchers
      Corrosion loss data from the 1957 NBS study for steels buried in a large variety of soils and exposed over 12–17 years are re-interpreted, supported with estimates for scatter in the data. This shows that losses predominantly are consistent with the bi-modal trending pattern also previously observed for steel exposed in a variety of other environments. For short-term and low time of wetness exposures the trends are consistent with mode 1 of the bi-modal trend. These reinterpretations should permit development of better understanding of the factors important for short- and-long term corrosion trends and for improved modelling and prediction.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.048
      Issue No: Vol. 137 (2018)
       
  • Dealloying induced N-doping in spindle-like porous rutile TiO2 for
           enhanced visible light photocatalytic activity
    • Authors: Zhengfeng Zhao; Tianyi Kou; Lanxiang Zhang; Sicheng Zhai; Wen Wang; Yan Wang
      Pages: 204 - 211
      Abstract: Publication date: June 2018
      Source:Corrosion Science, Volume 137
      Author(s): Zhengfeng Zhao, Tianyi Kou, Lanxiang Zhang, Sicheng Zhai, Wen Wang, Yan Wang
      We designed a high-yield and low temperature N-doping strategy in modifying TiO2 band structure. A nanostructured porous TiO2 was obtained through dealloying of Cu80Ti20 precursor through leaching by HNO3. It was confirmed that nitrogen was interstitially doped into TiO2 during dealloying. The doped nitrogen greatly narrows the band gap, resulting in a wider photoresponse region. The microporous structure with large specific surface area (167.04 m2 g−1) and narrowed band gap (2.61 eV) together contribute to the excellent photocatalytic activity towards degradation of methyl orange under visible light irradiation. Our work offers a novel strategy for synthesizing highly active N-doped TiO2.
      Graphical abstract image

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.049
      Issue No: Vol. 137 (2018)
       
  • Conversion of steel by polyphenolic model molecules: Corrosion inhibition
           mechanism by rutin, esculin, esculetol
    • Authors: Delphine Veys-Renaux; Solenn Reguer; Ludovic Bellot-Gurlet; François Mirambet; Emmanuel Rocca
      Pages: 1 - 8
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Delphine Veys-Renaux, Solenn Reguer, Ludovic Bellot-Gurlet, François Mirambet, Emmanuel Rocca
      This paper focuses on the potential corrosion protection of steel in presence of three polyphenolic model molecules (rutin, esculin, esculetol) in a weak acidic medium (pH = 4). From an electrochemical point of view, the cathodic inhibition was attributed to the oxygen scavenger role of the considered antioxidant compounds. SEM observations, Raman spectroscopy and Synchrotron X-ray absorption spectroscopy revealed furthermore the formation of a surface film by precipitation of iron polyphenolate conversion products, in which iron III is likely coordinated with free-catechol groups. Glycosylated catechol groups are rather adsorbed on a FeOOH layer.
      Graphical abstract image

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.02.015
      Issue No: Vol. 136 (2018)
       
  • Oxidation behavior of Si3N4 fibers derived from polycarbosilane
    • Authors: Siwei Li; Yongcai Li; Hongrui Xiao; Xiangdong Li; Qi Wang; Ming Tang; Huibin Tu; Jinqiu Huang; Lifu Chen; Zhiyang Yu
      Pages: 9 - 17
      Abstract: Publication date: Available online 21 February 2018
      Source:Corrosion Science
      Author(s): Siwei Li, Yongcai Li, Hongrui Xiao, Xiangdong Li, Qi Wang, Ming Tang, Huibin Tu, Jinqiu Huang, Lifu Chen, Zhiyang Yu
      Si3N4 fibers prepared from polycarbosliane are exposed in dry and wet air respectively from 800 to 1300 °C for up to 1 h. After dry air oxidation, an uniform SiO2 coating doped with nitrogen is formed on fiber surface. However, the coating obtained in wet air is much thicker with more complex microstructure containing sub-layers of N-doped SiO2, near stoichiometric Si3N4 and graphite-like nanoribbons. Activation energy for oxidation in wet and dry air is determined as 108 and 152 kJ mol−1, respectively. Both of the values are lower than the known Si3N4 materials with Ea of 259–485 kJ mol−1.

      PubDate: 2018-02-26T10:01:11Z
      DOI: 10.1016/j.corsci.2018.02.032
      Issue No: Vol. 136 (2018)
       
  • Electrochemical and DFT studies of laser-alloyed TiB2/TiC/Al coatings on
           aluminium alloy
    • Authors: Dunja Ravnikar; Ravi Shanker Rajamure; Uroš Trdan; Narendra B. Dahotre; Janez Grum
      Pages: 18 - 27
      Abstract: Publication date: Available online 20 February 2018
      Source:Corrosion Science
      Author(s): Dunja Ravnikar, Ravi Shanker Rajamure, Uroš Trdan, Narendra B. Dahotre, Janez Grum
      Microstructural and corrosion characteristic of laser-alloyed TiB2/TiC/Al composite coatings on 6082-T651 aluminium substrate were investigated. Density functional theory was used to study the chemical bonding of TiC and TiB2. The results confirmed a compact TiB2/TiC/Al-coating with low porosity, without any cracks and with good long-term stability against corrosion. Moreover, EIS and CP results confirmed enhanced corrosion resistance of laser-alloyed TiB2/TiC/Al coatings, with lower coating capacitance, increased polarisation resistance and reduced corrosion current density compared to the Al 6082 substrate. Although, all the laser-alloyed coatings experienced pitting attack, the intensity of pitting attack was substantially reduced compared to the substrate material.

      PubDate: 2018-02-26T10:01:11Z
      DOI: 10.1016/j.corsci.2018.02.028
      Issue No: Vol. 136 (2018)
       
  • Effect of ion irradiation of the metal matrix on the oxidation rate of
           Zircaloy-4
    • Authors: Marc Tupin; Romain Verlet; Kimberly Colas; Michael Jublot; Gérard Baldacchino; Krzysztof Wolski
      Pages: 28 - 37
      Abstract: Publication date: Available online 21 February 2018
      Source:Corrosion Science
      Author(s): Marc Tupin, Romain Verlet, Kimberly Colas, Michael Jublot, Gérard Baldacchino, Krzysztof Wolski
      The oxidation kinetics acceleration observed in Zircaloy-4 cladding in Pressurized Water Reactor could be partially due to metal irradiation damage occuring in-pile. To check this assumption, several ion irradiation tests of the Zircaloy-4 metal matrix were performed to reproduce the evolution of the metallurgical state in reactor. This study showed that the amorphization process of the intermetallic precipitates (SPPs) does not change significantly the oxidation rate of Zircaloy-4. Implantation of iron in the matrix to simulate iron dissolution from the SPPs has no real impact on the corrosion kinetics. However proton irradiations at 350 °C producing <a> dislocation loops resulted in a significant increase in the oxidation rate.

      PubDate: 2018-02-26T10:01:11Z
      DOI: 10.1016/j.corsci.2018.02.023
      Issue No: Vol. 136 (2018)
       
  • A new approach to electropolishing of pure Ti foil in acidic solution at
           room temperature for the formation of ordered and long TiO2 nanotube
           arrays
    • Authors: Vajihe Asgari; Mohammad Noormohammadi; Abdolali Ramazani; Mohammad Almasi Kashi
      Pages: 38 - 46
      Abstract: Publication date: Available online 21 February 2018
      Source:Corrosion Science
      Author(s): Vajihe Asgari, Mohammad Noormohammadi, Abdolali Ramazani, Mohammad Almasi Kashi
      We have developed an effective approach for the EP process of Ti foil at RT in acidic solution. The idea is to use two different temperatures (3 °C and RT) for both sides of foil to optimize the current density. While keeping the electrolyte at RT, the lower temperature is used for the backside cooling of foil. The Ti surface roughness decreases by approximately 91% after optimizing the EP conditions. Our results show that the growth rate of TNTs is enhanced up to 37% and a significant improvement in the arrangement is observed over a larger area, compared to unpolished foil.

      PubDate: 2018-02-26T10:01:11Z
      DOI: 10.1016/j.corsci.2018.02.040
      Issue No: Vol. 136 (2018)
       
  • Corrosion of X80 pipeline steel under sulfate-reducing bacterium biofilms
           in simulated CO2-saturated oilfield produced water with carbon source
           starvation
    • Authors: Hongwei Liu; Tingyue Gu; Guoan Zhang; Hongfang Liu; Y. Frank Cheng
      Pages: 47 - 59
      Abstract: Publication date: Available online 21 February 2018
      Source:Corrosion Science
      Author(s): Hongwei Liu, Tingyue Gu, Guoan Zhang, Hongfang Liu, Y. Frank Cheng
      Corrosion of X80 pipeline steel under sulfate-reducing bacterium (SRB) biofilms, which formed in a culture medium at different times, in a simulated CO2-saturated oilfield produced water was investigated. Both planktonic and sessile SRB cells survived after 21 days of immersion in the water under carbon source starvation. The biofilms pre-cultured with a longer time increased the corrosion rate of the steel. At 37 °C, it took about 4 days for SRB to grow and then participate in the steel corrosion. The SRB also facilitated localized corrosion. The SRB biofilm, once deactivated, would no longer affect the steel corrosion.

      PubDate: 2018-02-26T10:01:11Z
      DOI: 10.1016/j.corsci.2018.02.038
      Issue No: Vol. 136 (2018)
       
  • Fabrication of heterostructured β-Bi2O3-TiO2 nanotube array composite
           film for photoelectrochemical cathodic protection applications
    • Authors: Zi-Chao Guan; Hai-Peng Wang; Xia Wang; Juan Hu; Rong-Gui Du
      Pages: 60 - 69
      Abstract: Publication date: Available online 21 February 2018
      Source:Corrosion Science
      Author(s): Zi-Chao Guan, Hai-Peng Wang, Xia Wang, Juan Hu, Rong-Gui Du
      An ordered TiO2 nanotube array (NTA) film was first fabricated on a Ti substrate by anodization, β-Bi2O3 nanoparticles were then electrodeposited on the film for obtaining a heterostructured β-Bi2O3-TiO2 NTA composite film with enhanced photocathodic protection performances. Compared to the bare TiO2 NTA film, the composite film showed a wider light absorption region and higher charge carrier separation efficiency. Under white light illumination, the composite film as a photoanode made the potential of 403 stainless steel in a 0.5 M NaCl solution decrease by 450 mV relative to its corrosion potential, showing an effective photoelectrochemical cathodic protection effect.
      Graphical abstract image

      PubDate: 2018-02-26T10:01:11Z
      DOI: 10.1016/j.corsci.2018.02.048
      Issue No: Vol. 136 (2018)
       
  • Corrosion at the carbon steel-clay borehole water interface under anoxic
           alkaline and fluctuating temperature conditions
    • Authors: Michel L. Schlegel; Sophia Necib; Sylvie Daumas; Marc Labat; Cécile Blanc; Eddy Foy; Yannick Linard
      Pages: 70 - 90
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Michel L. Schlegel, Sophia Necib, Sylvie Daumas, Marc Labat, Cécile Blanc, Eddy Foy, Yannick Linard
      Coupons of carbon steel were corroded in situ in anoxic clay porewater under slightly alkaline conditions. Sample damage was less than 1 μm for 9 months at 85 °C only, and corrosion interfaces were covered by a thin, protective layer of Fe-silicate. The damage was more significant for samples exposed to room temperature transients (up to 38 μm for two years), and the long-term surface differentiated in cathodic (Fe-silicate covered) areas and anodic crevices filled with siderite, chukanovite, β-Fe2(OH)3Cl, and covered by tubercles. Sulfide compounds were detected, and were related to the metabolism of sulfate-reducing prokaryotes detected by microbiological techniques.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.02.052
      Issue No: Vol. 136 (2018)
       
  • Inhibition of Cor-Ten steel corrosion by “green” extracts of
           Brassica campestris
    • Authors: Maria Pia Casaletto; Viviana Figà; Antonella Privitera; Maurizio Bruno; Assunta Napolitano; Sonia Piacente
      Pages: 91 - 105
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Maria Pia Casaletto, Viviana Figà, Antonella Privitera, Maurizio Bruno, Assunta Napolitano, Sonia Piacente
      Extract of Brassica campestris was tested as potential corrosion inhibitor for Cor-Ten steel in NaCl and acidic solutions, simulating a marine and an urban-industrial environment, respectively. Potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) were performed both in absence and in presence of the extract at room temperature. The surface chemical analysis was investigated by X-ray Photoemission Spectroscopy (XPS), before and after corrosion. Electrochemical results demonstrated that a very small concentration of Brassica campestris extracts can inhibit Cor-Ten corrosion in NaCl solution (inhibition efficiency of 80–84%) better than in acidic solutions. Surface analysis results confirmed these good results.
      Graphical abstract image

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.02.059
      Issue No: Vol. 136 (2018)
       
  • Quasi-in-situ STEM-EDS insight into the role of Ag in the corrosion
           behaviour of Mg-Gd-Zr alloys
    • Authors: Yu Zhang; Poorwa Gore; Wei Rong; Yujuan Wu; Yuanming Yan; Ruifeng Zhang; Liming Peng; Jian-Feng Nie; Nick Birbilis
      Pages: 106 - 118
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Yu Zhang, Poorwa Gore, Wei Rong, Yujuan Wu, Yuanming Yan, Ruifeng Zhang, Liming Peng, Jian-Feng Nie, Nick Birbilis
      The present paper reports a quasi-in-situ STEM-EDS approach for studying the role of Ag in the corrosion behaviour of Mg-Gd-Zr alloys. Following corrosion, the segregation of O at the interface of the α-Mg matrix and the β phase was observed. Furthermore, Ag-rich particles and the re-deposition of Ag were also observed on the nanoscale. Based on quasi-in-situ STEM-EDS observations herein, the partitioning of Ag into the β phase leads to enhanced localised corrosion, whilst the subsequent formation of Ag-rich particles during the corrosion process leads to enhanced rate of corrosion propagation, with accompanying oxy-hydroxide formation observed upon the Mg-Gd-Ag-Zr.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.02.058
      Issue No: Vol. 136 (2018)
       
  • Electrochemical measurements and atomistic simulations of Cl−-induced
           passivity breakdown on a Cu2O film
    • Authors: Xin Wei; Chaofang Dong; Pan Yi; Aoni Xu; Zhanghua Chen; Xiaogang Li
      Pages: 119 - 128
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Xin Wei, Chaofang Dong, Pan Yi, Aoni Xu, Zhanghua Chen, Xiaogang Li
      The mechanism of passivity breakdown on Cu2O films was studied. The thickness and components of the film were estimated by EIS, AES and XPS analyses. The structural relaxations, energies, electronic properties and diffusion coefficients were calculated by first-principles calculations. Both the experimental and calculated results demonstrate that the film thinning is due to the adsorption of Cl− on the surface instead of a penetration process. The inner point defects facilitate the adsorption of Cl−, and the introduction of Cl−, in turn, increases the transport rate of point defects. A theoretical model was proposed, which is also applicable to local breakdown.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.02.057
      Issue No: Vol. 136 (2018)
       
  • A review of uranium corrosion by hydrogen and the formation of uranium
           hydride
    • Authors: A. Banos; N.J. Harker; T.B. Scott
      Pages: 129 - 147
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): A. Banos, N.J. Harker, T.B. Scott
      Uranium hydride (UH3) is the direct product of the reaction between uranium metal and gaseous hydrogen. In the context of uranium storage, this corrosion reaction is considered deleterious, not just because the structure of the metal may become significantly degraded but also because the resulting hydride is pyrophoric and therefore potentially flammable in air if present in significant quantity. The current review draws from the literature surrounding the uranium-hydrogen system accrued over a 70-year period, providing a comprehensive assessment of what is known about hydride formation, decomposition and oxidation in the context of uranium storage applications

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.002
      Issue No: Vol. 136 (2018)
       
  • Modelling of the effect of grain boundary diffusion on the oxidation of
           Ni-Cr alloys at high temperature
    • Authors: Léa Bataillou; Clara Desgranges; Laure Martinelli; Daniel Monceau
      Pages: 148 - 160
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Léa Bataillou, Clara Desgranges, Laure Martinelli, Daniel Monceau
      Grain boundaries in oxide scales have a strong effect on oxidation kinetics when they act as diffusion short circuits. This study proposes a quantitative evaluation of the phenomenon by modelling. Various cases of oxide microstructure evolution are treated using both analytical and numerical resolutions. Results showed that the effect of oxide grain growth on the oxidation kinetics can be analysed considering a transitory stage for which the oxidation kinetics is not purely parabolic. Some guidelines for choosing the appropriate post-treatment method for the analysis and extrapolation of experimental oxidation kinetics are given.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.001
      Issue No: Vol. 136 (2018)
       
  • Enhanced corrosion resistance in Fe-based amorphous coatings through
           eliminating Cr-depleted zones
    • Authors: J. Wu; S.D. Zhang; W.H. Sun; Y. Gao; J.Q. Wang
      Pages: 161 - 173
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): J. Wu, S.D. Zhang, W.H. Sun, Y. Gao, J.Q. Wang
      Localised Cr depletion caused by defects in Fe-based amorphous coatings, e.g. pores, oxides and crystalline phases, is thought to be the dominating reason for decreasing corrosion resistance in the coatings. An electrochemical polarisation treatment was used to selectively dissolve Cr-depleted zones in the coatings. The corrosion behaviour of the coatings was studied by potentiodynamic and potentiostatic polarisation and electrochemical impedance spectroscopy in 3.5 wt.% NaCl solution. With the elimination of Cr-depleted zones the corrosion resistance of the coatings was enhanced, with an order of magnitude reduction in the passive current density together with the improvement of passive film stability.
      Graphical abstract image

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.005
      Issue No: Vol. 136 (2018)
       
  • Microstructure and corrosion resistance of micro arc oxidation plus
           electrostatic powder spraying composite coating on magnesium alloy
    • Authors: Wei Yang; Dapeng Xu; Jianli Wang; Xiaofei Yao; Jian Chen
      Pages: 174 - 179
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Wei Yang, Dapeng Xu, Jianli Wang, Xiaofei Yao, Jian Chen
      Based on the morphological characteristics of the microporous micro arc oxidation (MAO) ceramic coating, a double layer composite coating system was applied on the surface of AZ31 magnesium alloy by MAO plus electrostatic powder spraying (EPS) technique. The Mg sample coated with MAO plus EPS (MAO + EPS) was compared with Mg sample coated by MAO coating or EPS monolayer. The results indicated that the corrosion resistance of AZ31 Mg alloy was significantly improved by MAO + EPS composite coating with the exellent binding force. Furthermore, the corrosion mechanism of three coated Mg alloy was discussed.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.004
      Issue No: Vol. 136 (2018)
       
  • The influence of temperature gradient on the corrosion of materials in
           molten fluorides
    • Authors: Yanli Wang; Chaoliu Zeng; Weihua Li
      Pages: 180 - 187
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Yanli Wang, Chaoliu Zeng, Weihua Li
      The corrosion of materials is a great challenge for the application of a molten salt nuclear reactor using molten fluoride salts with dissolved fissile material as fuel or using clean molten salts to cool solid nuclear fuel. Temperature gradient is one of the main driving forces. In present investigation, the corrosion of Cr and alloy GH3535 in molten (Li,Na,K)F with the temperature gradients of 600–700 and 650–700 °C is investigated. The experimental results indicate that the difference in the temperature of the melt causes the difference of the corrosion potential, and thus leads to the occurrence of galvanic corrosion. The corrosion of hot-end samples is accelerated, with a higher effectiveness for a higher temperature gradient.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.003
      Issue No: Vol. 136 (2018)
       
  • Influence of Surface Mechanical Attrition Treatment on the oxidation
           behaviour of 316L stainless steel
    • Authors: S. Benafia; D. Retraint; S. Yapi Brou; B. Panicaud; J.L. Grosseau Poussard
      Pages: 188 - 200
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): S. Benafia, D. Retraint, S. Yapi Brou, B. Panicaud, J.L. Grosseau Poussard
      The present article investigates the effect of Surface Mechanical Attrition Treatment (SMAT) on the high temperature oxidation of AISI 316L, during isothermal oxidation between 650 and 750 °C in air. The observations show a beneficial effect of the SMAT process on the oxidation resistance of 316L steel, for high temperatures. Indeed, the oxidation kinetics of the treated samples is shown to be related to a preferential growth of chromia starting at 700 °C up to 750 °C. This leads us to conclude that the SMAT used on the 316L reverses the main oxide phase, inhibiting the growth of the hematite and promoting the chromia.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.007
      Issue No: Vol. 136 (2018)
       
  • Corrosion protection utilizing Ag layer on Cu coated AZ31 Mg alloy
    • Authors: Nguyen Van Phuong; Min-Sik Park; Chang Dong Yim; Bong Sun You; Sungmo Moon
      Pages: 201 - 209
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Nguyen Van Phuong, Min-Sik Park, Chang Dong Yim, Bong Sun You, Sungmo Moon
      This study investigated the corrosion protection by electrodeposited copper layer on AZ31 Mg alloy with and without additional silver layer. The single copper layer electrodeposited on AZ31 from copper pyrophosphate bath exhibited nodular structure and crevices between the nodules which resulted in the rapid initiation of pitting corrosion. Employing an additional electrodeposited silver layer onto the copper deposited AZ31 alloy decreased the number of imperfections and changed structure of electrodeposited copper from nodular to fine particle type resulting in improved corrosion resistance. This study further revealed that triple-layer coating of Cu/Ag/Cu exhibited the most efficient corrosion protection of AZ31 Mg alloy.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.006
      Issue No: Vol. 136 (2018)
       
  • Corrosion behavior and mechanism of 3Cr steel in CO2 environment with
           various Ca2+ concentration
    • Authors: Bei Wang; Lining Xu; Guozhang Liu; Minxu Lu
      Pages: 210 - 220
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Bei Wang, Lining Xu, Guozhang Liu, Minxu Lu
      The effect of Ca2+ on the corrosion behavior of 3Cr steel was investigated using immersion tests and electrochemical measurements. The results demonstrated that with an increase in Ca2+ concentration in the solution, the corrosion rate of 3Cr steel decreased and the Ca2+ content in the corrosion scale increased. Ca is involved in the formation of both the inner and outer corrosion scales of 3Cr steel. Polarization curves revealed that Ca2+ could enhance the pseudopassivation of 3Cr steel. EIS results demonstrated that Ca2+ can decrease the porosity of corrosion films. Additionally, Ca2+ could accelerate the precipitation of FeCO3 (CaxFe1−xCO3) by reducing its solubility and saturation degree.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.013
      Issue No: Vol. 136 (2018)
       
  • Corrosion behavior of non-equilibrium Zr-Sn-Nb-Fe-Cu-O alloys in
           high-temperature 0.01 M LiOH aqueous solution and degradation of the
           surface oxide films
    • Authors: Liang-Yu Chen; Peng Shen; Lina Zhang; Sheng Lu; Linjiang Chai; Zhinan Yang; Lai-Chang Zhang
      Pages: 221 - 230
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Liang-Yu Chen, Peng Shen, Lina Zhang, Sheng Lu, Linjiang Chai, Zhinan Yang, Lai-Chang Zhang
      This work uses qualitative analyses to investigate the corrosion behavior of two non-equilibrium Zr-Sn-Nb-Fe-Cu-O alloys in 0.01 M LiOH aqueous solution at 360 °C/18.6 MPa. Precipitates of second-phase particles (SPPs) and local recrystallization in the matrix are observed near the oxide/metal interface during extended periods of corrosion. Oxides formed on both alloys exhibit different hardness and gradually degrade. The oxides embedded with more SPPs show a lower hardness and therefore break down earlier. The variations of non-equilibrium microstructures of the substrates influence the properties of the oxides, thereby determining the corrosion performance of the alloys.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.012
      Issue No: Vol. 136 (2018)
       
  • Corrosion behavior of WC-Co coatings deposited by cold gas spray onto AA
           7075-T6
    • Authors: F.S. da Silva; N. Cinca; S. Dosta; I.G. Cano; M. Couto; J.M. Guilemany; A.V. Benedetti
      Pages: 231 - 243
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): F.S. da Silva, N. Cinca, S. Dosta, I.G. Cano, M. Couto, J.M. Guilemany, A.V. Benedetti
      This work reports a morphological, mechanical, and corrosion resistance characterization of WC-12Co and WC-25Co coatings deposited by cold gas spray (CGS) onto AA 7075-T6 alloy. Cross-sectional images of the coatings revealed dense structures with low porosities. The coating thicknesses were 65 μm for WC-12Co and 118 μm for WC-25Co. XRD analysis showed that no fragile phases were formed in the coatings. SEM images and electrochemical results obtained after 700 h exposure to NaCl solution showed that WC-25Co exhibited better corrosion resistance performance. The WC-12Co and WC-25Co coatings withstood 1000 and 3000 h of salt fog spray test, respectively.
      Graphical abstract image

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.010
      Issue No: Vol. 136 (2018)
       
  • Microstructure and oxidation behaviour of plasma-sprayed NiCoCrAlY
           coatings with and without Ta on Ti44Al6Nb1Cr alloys
    • Authors: Ruirun Chen; Xue Gong; You Wang; Gang Qin; Nannan Zhang; Yanqing Su; Hongsheng Ding; Jingjie Guo; Hengzhi Fu
      Pages: 244 - 254
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Ruirun Chen, Xue Gong, You Wang, Gang Qin, Nannan Zhang, Yanqing Su, Hongsheng Ding, Jingjie Guo, Hengzhi Fu
      NiCoCrAlY coatings with and without Ta were plasma-sprayed onto Ti44Al6Nb1Cr alloy to investigate their microstructure and oxidation resistance at 900 °C for 100 h. The results indicated that the oxidation resistance of the NiCoCrAlY coating was better than that of the NiCoCrAlYTa coating. The formation of Al2O3 scale on the NiCoCrAlYTa coating was inhibited due to the low Al concentration and the dragging effect of Ta. Furthermore, loose NiO/CoO scale on the NiCoCrAlYTa coating promoted the inward diffusion of oxygen. As a result, an Al2O3 layer was formed at the interface, suppressing interdiffusion between coating and substrate.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.008
      Issue No: Vol. 136 (2018)
       
  • Calcium phosphate coatings for marble conservation: Influence of ethanol
           and isopropanol addition to the precipitation medium on the coating
           microstructure and performance
    • Authors: Enrico Sassoni; Gabriela Graziani; Elisa Franzoni; George W. Scherer
      Pages: 255 - 267
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Enrico Sassoni, Gabriela Graziani, Elisa Franzoni, George W. Scherer
      The effect of adding ethanol and isopropanol to aqueous solutions of diammonium hydrogen phosphate, used to create a passivating layer of calcium phosphates over marble, was investigated. Thanks to its weakening effect on the hydration sphere of ions in solution, ethanol allowed complete coverage of marble surface by a crack-free and pore-free layer of octacalcium phosphate. Even better results were obtained using isopropanol, because it has lower adsorption affinity to calcite than ethanol. Treatments involving alcohols provided good acid protection and also restored cohesion among calcite grains in weathered marble.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.019
      Issue No: Vol. 136 (2018)
       
  • Wet etching of dilute nitride GaInNAs, GaInNAsSb, and GaNAsSb alloys
           lattice-matched to GaAs
    • Authors: Marianna Raappana; Ville Polojärvi; Arto Aho; Jaakko Mäkelä; Timo Aho; Antti Tukiainen; Pekka Laukkanen; Mircea Guina
      Pages: 268 - 274
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Marianna Raappana, Ville Polojärvi, Arto Aho, Jaakko Mäkelä, Timo Aho, Antti Tukiainen, Pekka Laukkanen, Mircea Guina
      We have studied the etching of GaInNAs, GaInNAsSb, and GaNAsSb alloys by NH4OH, H2SO4, and H3PO4 based solutions. NH4OH based solutions resulted in smooth surface, while other solutions created rougher and granular surfaces. The etch rates were found to increase with the Sb content. For GaInNAs, x-ray photoelectron spectroscopy revealed the enrichment of In on the etched surfaces, indicating In or In oxides having a smaller removal rate compared to Ga or Ga oxides. The enrichment of In was associated with smoother surfaces after etching and an enhanced photoluminescence caused by lower surface recombination due to reduced surface state density.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.018
      Issue No: Vol. 136 (2018)
       
  • Study of corrosion behavior of copper in 3.5 wt.% NaCl solution
           containing extracellular polymeric substances of an aerotolerant
           sulphate-reducing bacteria
    • Authors: Shiqiang Chen; Dun Zhang
      Pages: 275 - 284
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Shiqiang Chen, Dun Zhang
      Extracellular polymeric substances (EPS) of an aerotolerant sulphate-reducing bacteria were extracted, and they contained mainly polysaccharides and proteins. Effects of EPS on corrosion behavior of copper were investigated through electrochemical methods and surface analysis techniques in 3.5 wt.% NaCl solution under aerobic condition. Results indicated that after a short-period immersion, EPS inhibit copper corrosion, and their inhibition effect decreases with increasing EPS concentration. For long-term immersion, copper corrosion is promoted due to the destruction of the protective Cu2O film by EPS.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.017
      Issue No: Vol. 136 (2018)
       
  • Evaluation of multi-layered graphene nano-platelet composite coatings for
           corrosion control part I - contact potentials and gas permeability
    • Authors: C.A.J. Richards; C.F. Glover; G. Williams; H.N. McMurray; J. Baker
      Pages: 285 - 291
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): C.A.J. Richards, C.F. Glover, G. Williams, H.N. McMurray, J. Baker
      The electronic and diffusion-blocking properties of graphene nano-platelets (GNPs) are quantified with a view to understanding their action as (possible) additives to anti-corrosion coatings. Platelet size and thickness are determined by SEM and BET specific surface area measurements. A Scanning Kelvin probe is used to show that a contact potential of up to 1.2V develops between GNP particles and various metal substrates: silver, copper, iron and zinc. A novel photochemical method is used to show that oxygen permeation rates through a PVB-GNP (polyvinylbutyral) composite coating decrease by over an order of magnitude as GNP volume fraction increases to 0.056.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.016
      Issue No: Vol. 136 (2018)
       
  • The inhibition efficiency of different species on AA2024/graphite galvanic
           coupling models depicted by SVET
    • Authors: L.B. Coelho; M.-G. Olivier
      Pages: 292 - 303
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): L.B. Coelho, M.-G. Olivier
      The inhibition efficiency of several species on the corrosion of AA2024-T3/graphite galvanic coupling was determined in NaCl electrolyte. Two distinct galvanic coupling models with different anode/cathode area ratios were elaborated making use of a graphite rod or of a graphite foil. SVET was applied in order to directly measure the current densities related to galvanic corrosion processes. Inhibition efficiency rankings were established by calculating the average total currents from SVET data and by the galvanic currents provided by ZRA. The quantitative results together with optical analysis revealed that the most effective inhibitor system is the benzotriazole + 2-mercaptobenzothiazole + Tween-80.
      Graphical abstract image

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.015
      Issue No: Vol. 136 (2018)
       
  • Evaluation of multi-layered graphene nano-platelet composite coatings for
           corrosion control part II – Cathodic delamination kinetics
    • Authors: C.F. Glover; C.A.J. Richards; G. Williams; H.N. McMurray
      Pages: 304 - 310
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): C.F. Glover, C.A.J. Richards, G. Williams, H.N. McMurray
      In-situ Scanning Kelvin probe (SKP) measurements are used to follow the corrosion-driven cathodic delamination kinetics of model coatings comprising graphene nano-platelets (GNP) dispersed in polyvinylbutyral (PVB) adherent to iron and zinc (galvanised steel). To reduce delamination rates by >90% (relative to unpigmented PVB) a GNP volume fraction of 0.056 is required on iron but only 0.028 on zinc. On this basis, together with work function and O2 permeability data it is proposed that the GNP acts principally to slow through-coating oxygen transport on iron; whereas on zinc a galvanic couple forms between zinc and GNP, displacing cathodic oxygen reduction.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.014
      Issue No: Vol. 136 (2018)
       
  • Water vapour effects on corrosion of Ni-Cr alloys in CO2 gas at
           650 °C
    • Authors: Yun Xie; Jianqiang Zhang; David J. Young
      Pages: 311 - 325
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Yun Xie, Jianqiang Zhang, David J. Young
      Binary Ni-Cr alloys containing 5–30 wt% Cr were oxidized in Ar-20CO2-20H2O gas at 650 °C. Weight gain kinetics for alloys reacted with electropolished surfaces generally increased with increasing Cr content up to 25 wt%. All alloys underwent both internal oxidation and outer NiO formation. The NiO developed as separated, isolated growths on all alloys. Internal oxide zones on high chromium alloys underwent buckling. Weight gain and internal oxidation rates were slower than in dry Ar-20CO2. These differences are discussed in terms of altered diffusion processes in NiO in the presence of H2O, and displacement of metal from the internal oxidation zone.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.023
      Issue No: Vol. 136 (2018)
       
  • Corrosion inhibition of 2024-T3 aluminum alloy in 3.5% NaCl by
           thiosemicarbazone derivatives
    • Authors: B.G. Prakashaiah; D. Vinaya Kumara; A. Anup Pandith; A. Nityananda Shetty; B.E. Amitha Rani
      Pages: 326 - 338
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): B.G. Prakashaiah, D. Vinaya Kumara, A. Anup Pandith, A. Nityananda Shetty, B.E. Amitha Rani
      Three thiosemicarzone derivatives, namely (E)-2-(2-hydroxybenzylidene) hydrazinecarbothioamide(MHC), (E)-2-(2,4-dihydroxybenzylidene)hydrazinecarbothioamide (DHC) and (E)-2-(2,3,4-trihydroxybenzylidene)hydrazinecarbothioamide (THC) were synthesized and their corrosion inhibition action on 2024-T3 aluminum alloy was studied in 3.5% NaCl solution. The surface morphology and surface composition of the corroded alloy were examined using FESEM, 3D profilometry, EDX spectroscopy and X-ray photoelectron spectroscopy. The synthesized inhibitors were found to provide corrosion protection on AA2024-T3 by forming an adsorbed layer of the complex on the alloy surface. They exhibited inhibition efficiency in the order, MHC < DHC < THC. Quantum chemical calculations corroborated the experimental results.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.021
      Issue No: Vol. 136 (2018)
       
  • Effect of flow rate on localized corrosion of X70 steel in supercritical
           CO2 environments
    • Authors: Liang Wei; Xiaolu Pang; Kewei Gao
      Pages: 339 - 351
      Abstract: Publication date: 15 May 2018
      Source:Corrosion Science, Volume 136
      Author(s): Liang Wei, Xiaolu Pang, Kewei Gao
      The effect of flow rate on localized corrosion of X70 steel in supercritical CO2-saturated aqueous phase was studied. Results shown that flow rate changed the predominant type from general corrosion (static condition) to localized corrosion (dynamic condition), and the localized corrosion rate gradually increased with time under dynamic condition. The main localized corrosion type initiated at the early corrosion stage the local spalling amorphous layer transformed to FeCO3 scale, and localized corrosion could also occur due to the broken of dense FeCO3 scale. The critical diameter of the pit for FeCO3 scale growth inside it decreased exponentially with flow rate.

      PubDate: 2018-04-15T14:27:05Z
      DOI: 10.1016/j.corsci.2018.03.020
      Issue No: Vol. 136 (2018)
       
 
 
JournalTOCs
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
Fax: +00 44 (0)131 4513327
 
Home (Search)
Subjects A-Z
Publishers A-Z
Customise
APIs
Your IP address: 54.81.71.187
 
About JournalTOCs
API
Help
News (blog, publications)
JournalTOCs on Twitter   JournalTOCs on Facebook

JournalTOCs © 2009-