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  Subjects -> ENGINEERING (Total: 2270 journals)
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ENGINEERING (1199 journals)                  1 2 3 4 5 6 | Last

Showing 1 - 200 of 1205 Journals sorted alphabetically
3 Biotech     Open Access   (Followers: 7)
3D Research     Hybrid Journal   (Followers: 19)
AAPG Bulletin     Full-text available via subscription   (Followers: 5)
AASRI Procedia     Open Access   (Followers: 15)
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: 217)
Acta Geotechnica     Hybrid Journal   (Followers: 6)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 5)
Acta Polytechnica : Journal of Advanced Engineering     Open Access   (Followers: 2)
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: 10)
Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi     Open Access  
Adsorption     Hybrid Journal   (Followers: 4)
Advanced Engineering Forum     Full-text available via subscription   (Followers: 4)
Advanced Science     Open Access   (Followers: 4)
Advanced Science Focus     Free   (Followers: 3)
Advanced Science Letters     Full-text available via subscription   (Followers: 5)
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Advances in Physics Theories and Applications     Open Access   (Followers: 12)
Advances in Polymer Science     Hybrid Journal   (Followers: 40)
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Advances in Remote Sensing     Open Access   (Followers: 35)
Advances in Science and Research (ASR)     Open Access   (Followers: 6)
Aerobiologia     Hybrid Journal   (Followers: 1)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 4)
AIChE Journal     Hybrid Journal   (Followers: 28)
Ain Shams Engineering Journal     Open Access   (Followers: 5)
Akademik Platform Mühendislik ve Fen Bilimleri Dergisi     Open Access  
Alexandria Engineering Journal     Open Access   (Followers: 1)
AMB Express     Open Access   (Followers: 1)
American Journal of Applied Sciences     Open Access   (Followers: 27)
American Journal of Engineering and Applied Sciences     Open Access   (Followers: 11)
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)
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: 8)
Applied Clay Science     Hybrid Journal   (Followers: 4)
Applied Computational Intelligence and Soft Computing     Open Access   (Followers: 12)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 3)
Applied Nanoscience     Open Access   (Followers: 7)
Applied Network Science     Open Access  
Applied Numerical Mathematics     Hybrid Journal   (Followers: 5)
Applied Physics Research     Open Access   (Followers: 3)
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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: 4)
Archives of Foundry Engineering     Open Access  
Archives of Thermodynamics     Open Access   (Followers: 7)
Arkiv för Matematik     Hybrid Journal   (Followers: 1)
ASEE Prism     Full-text available via subscription   (Followers: 2)
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: 7)
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: 7)
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: 3)
Batteries     Open Access   (Followers: 3)
Bautechnik     Hybrid Journal   (Followers: 1)
Bell Labs Technical Journal     Hybrid Journal   (Followers: 23)
Beni-Suef University Journal of Basic and Applied Sciences     Open Access   (Followers: 3)
BER : Manufacturing Survey : Full Survey     Full-text available via subscription   (Followers: 2)
BER : Motor Trade Survey     Full-text available via subscription   (Followers: 1)
BER : Retail Sector Survey     Full-text available via subscription   (Followers: 2)
BER : Retail Survey : Full Survey     Full-text available via subscription   (Followers: 2)
BER : Survey of Business Conditions in Manufacturing : An Executive Summary     Full-text available via subscription   (Followers: 3)
BER : Survey of Business Conditions in Retail : An Executive Summary     Full-text available via subscription   (Followers: 3)
Bharatiya Vaigyanik evam Audyogik Anusandhan Patrika (BVAAP)     Open Access   (Followers: 1)
Biofuels Engineering     Open Access  
Biointerphases     Open Access   (Followers: 1)
Biomaterials Science     Full-text available via subscription   (Followers: 9)
Biomedical Engineering     Hybrid Journal   (Followers: 16)
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: 16)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 31)
Biomedical Engineering: Applications, Basis and Communications     Hybrid Journal   (Followers: 5)
Biomedical Microdevices     Hybrid Journal   (Followers: 8)
Biomedical Science and Engineering     Open Access   (Followers: 3)
Biomedizinische Technik - Biomedical Engineering     Hybrid Journal  
Biomicrofluidics     Open Access   (Followers: 4)
BioNanoMaterials     Hybrid Journal   (Followers: 1)
Biotechnology Progress     Hybrid Journal   (Followers: 39)
Boletin Cientifico Tecnico INIMET     Open Access  
Botswana Journal of Technology     Full-text available via subscription  
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: 14)
Bulletin of Engineering Geology and the Environment     Hybrid Journal   (Followers: 3)
Bulletin of the Crimean Astrophysical Observatory     Hybrid Journal  
Cahiers, Droit, Sciences et Technologies     Open Access  
Calphad     Hybrid Journal  
Canadian Geotechnical Journal     Full-text available via subscription   (Followers: 13)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 40)
Case Studies in Engineering Failure Analysis     Open Access   (Followers: 7)
Case Studies in Thermal Engineering     Open Access   (Followers: 3)
Catalysis Communications     Hybrid Journal   (Followers: 6)
Catalysis Letters     Hybrid Journal   (Followers: 2)
Catalysis Reviews: Science and Engineering     Hybrid Journal   (Followers: 8)
Catalysis Science and Technology     Free   (Followers: 6)
Catalysis Surveys from Asia     Hybrid Journal   (Followers: 3)
Catalysis Today     Hybrid Journal   (Followers: 5)
CEAS Space Journal     Hybrid Journal  
Cellular and Molecular Neurobiology     Hybrid Journal   (Followers: 3)
Central European Journal of Engineering     Hybrid Journal   (Followers: 1)
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: 1)
CienciaUAT     Open Access  
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: 14)
City, Culture and Society     Hybrid Journal   (Followers: 21)
Clay Minerals     Full-text available via subscription   (Followers: 9)
Clean Air Journal     Full-text available via subscription   (Followers: 2)
Coal Science and Technology     Full-text available via subscription   (Followers: 3)
Coastal Engineering     Hybrid Journal   (Followers: 11)
Coastal Engineering Journal     Hybrid Journal   (Followers: 4)
Coatings     Open Access   (Followers: 2)
Cogent Engineering     Open Access   (Followers: 2)
Cognitive Computation     Hybrid Journal   (Followers: 4)
Color Research & Application     Hybrid Journal   (Followers: 1)
COMBINATORICA     Hybrid Journal  
Combustion Theory and Modelling     Hybrid Journal   (Followers: 13)
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: 23)
Composite Interfaces     Hybrid Journal   (Followers: 6)
Composite Structures     Hybrid Journal   (Followers: 252)
Composites Part A : Applied Science and Manufacturing     Hybrid Journal   (Followers: 177)
Composites Part B : Engineering     Hybrid Journal   (Followers: 223)
Composites Science and Technology     Hybrid Journal   (Followers: 164)
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Concurrent Engineering     Hybrid Journal   (Followers: 3)
Continuum Mechanics and Thermodynamics     Hybrid Journal   (Followers: 6)
Control and Dynamic Systems     Full-text available via subscription   (Followers: 8)
Control Engineering Practice     Hybrid Journal   (Followers: 41)
Control Theory and Informatics     Open Access   (Followers: 7)
Corrosion Science     Hybrid Journal   (Followers: 24)
CT&F Ciencia, Tecnologia y Futuro     Open Access  
CTheory     Open Access  

        1 2 3 4 5 6 | Last

Journal Cover Corrosion Science
  [SJR: 1.931]   [H-I: 130]   [24 followers]  Follow
    
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 0010-938X
   Published by Elsevier Homepage  [3031 journals]
  • Application of the FRI crack growth model for neutron-irradiated stainless
           steels in high-temperature water of a boiling water reactor environment
    • Abstract: Publication date: Available online 10 May 2017
      Source:Corrosion Science
      Author(s): Masato Koshiishi, Tsuneyuki Hashimoto, Ryoji Obata
      This study considered a methodology to reflect the effect on material properties by neutron irradiation onto the FRI model of the crack growth rate (CGR) of stress corrosion cracking developed at Tohoku University. Yield strength and strain hardening exponent were evaluated by a tensile test for irradiated stainless steels, and the relationship between mechanical property and strain to fracture of the oxide film was derived. Effect of the radiation-induced segregation on CGR was also discussed. The experimental tendencies for the CGR to increase with dose and almost saturate above 3dpa were well replicated by the model calculations.

      PubDate: 2017-05-22T13:20:24Z
       
  • Improved corrosion behaviour of electron beam melted Ti-6Al–4V alloy in
           phosphate buffered saline
    • Abstract: Publication date: Available online 10 May 2017
      Source:Corrosion Science
      Author(s): Yun Bai, Xin Gai, Shujun Li, Lai-Chang Zhang, Yujing Liu, Yulin Hao, Xing Zhang, Rui Yang, Yongbo Gao
      The electrochemical corrosion behaviour of Ti-6Al–4V prepared by electron beam melting was investigated in phosphate buffered saline and compared with those of traditional wrought counterpart. Electrochemical results showed EBM-produced Ti-6Al–4V possesses slightly better corrosion resistance than the wrought Ti-6Al–4V, which is attributed to larger proportions of β phase and ultrafine-grained lamellar α/β phases in the microstructure of EBM-produced Ti-6Al–4V. The β phase enhances the resistance of charge transfer, thereby reducing the rate of metal dissolving reaction; while the α/β phases result in homogenous distribution of alloying elements in different phases thus restraining the galvanic effect between α and β phases.

      PubDate: 2017-05-22T13:20:24Z
       
  • The effect of carbon on hydrogen embrittlement in stable Cr-Ni-Mn-N
           austenitic stainless steels
    • Abstract: Publication date: Available online 18 May 2017
      Source:Corrosion Science
      Author(s): Han-Seop Noh, Jee-Hyun Kang, Kwang-Min Kim, Sung-Joon Kim
      The effect of carbon on hydrogen embrittlement in stable austenitic stainless steels is investigated by adding either 0.02 or 0.1wt.% C. During deformation, planar slip is pronounced and fine dislocation structures develop, which is followed by mechanical twinning in both steels. After hydrogen pre-charging, the alloy with higher carbon is more susceptible to hydrogen embrittlement. Based on strain hardening behaviour, it is proposed that C enhances planar slip and refines mechanical twins. Therefore, a higher C concentration results in more sites available for stress concentration and hydrogen trapping, and accelerates the embrittlement.

      PubDate: 2017-05-18T10:56:21Z
       
  • Recurrence plot-based dynamic analysis on electrochemical noise of the
           evolutive corrosion process
    • Abstract: Publication date: Available online 17 May 2017
      Source:Corrosion Science
      Author(s): Wei Liu, Dongzhe Wang, Xiaohua Chen, Chunguang Wang, Haiding liu
      The cross recurrence plot (CRP) method was applied on the simultaneous current and voltage fluctuation time records in consideration of their possible nonlinear kinetics. Sequential cross recurrence quantification analysis (CRQA), CRP pattern recognition and synchronization analysis were used to screen the paralleled running from the uncorrelated oscillations, to recognize the impedance component, and to identify the synchronization type and degree in the dynamical view point. With the aid of the proposed approach, the sulfur-induced localized corrosion of the alloy 718 in the high temperature brine was detected and evaluated during the evolutive corrosion process.

      PubDate: 2017-05-18T10:56:21Z
       
  • Corrosion and radiation resistant nanoceramic coatings for lead fast
           reactors
    • Abstract: Publication date: Available online 16 May 2017
      Source:Corrosion Science
      Author(s): F. García Ferré, A. Mairov, D. Iadicicco, M. Vanazzi, S. Bassini, M. Utili, M. Tarantino, M. Bragaglia, F.R. Lamastra, F. Nanni, L. Ceseracciu, Y. Serruys, P. Trocellier, L. Beck, K. Sridharan, M.G. Beghi, F. Di Fonzo
      Bare and Al2O3-coated austenitic steel samples are exposed to lead-fast-reactor relevant corrosive conditions. Selective leaching of Ni, Mn and Cr is observed in bare samples exposed to high temperature stagnant lead (550°C, 10−8 wt.% oxygen, 1000 and 4000hours). By contrast, corrosion is not observed in either pristine (4000hours) or irradiated (1000hours) coated samples. Further characterization and testing methods include SEM, TEM, STEM, EDS, cyclic nanoimpact, microindentation, scratch, and thermal cycling. Overall, the results show that the coatings retain structural integrity under the conditions investigated, which is a crucial prerogative for corrosion protection with ceramic coatings.
      Graphical abstract image

      PubDate: 2017-05-18T10:56:21Z
       
  • Studies on Atomic Oxygen erosion resistance of deposited Mg-alloy coating
           on Kapton
    • Abstract: Publication date: Available online 15 May 2017
      Source:Corrosion Science
      Author(s): Hong Qi, Yuhai Qian, Jingjun Xu, Meishuan Li
      In this paper, a continuous and uniform Mg-alloy coating was deposited by magnetron sputtering to protect flexible polyimide substrate from atomic oxygen (AO) erosion in the low earth orbit. AO exposure experiments indicated that the erosion yield of the as-deposited Mg-alloy coating was 8.897×10−26 cm3 atom−1, about two orders of magnitude lower than that of blank polyimide. During AO exposure, a relatively compact and continuous thin MgO scale formed on the surface of the Mg-alloy coating, resulting in the enhanced AO erosion resistance of the polyimide with Mg-alloy coating.
      Graphical abstract image

      PubDate: 2017-05-18T10:56:21Z
       
  • Coaxial anodic oxidation under dynamic electrolyte conditions for inner
           surface patterning of high-aspect-ratio and slim Ti tubes
    • Abstract: Publication date: Available online 15 May 2017
      Source:Corrosion Science
      Author(s): Ye Wang, Lidong Sun, Chengjie Xiang, Xiaoli Zhao, Sujuan Wu, Sam Zhang
      We report a feasible and facile approach of coaxial anodic oxidation under dynamic electrolyte conditions for patterning Ti tubes. Uniform TiO2 nanotube arrays are prepared at the inner surface of Ti tubes with 930mm in length and 3mm in diameter, being the largest aspect ratio ever reported. Interestingly, a resulting structure of nanowire bundles standing upright the nanotubes, anodized at 20V for 4h with an electrolyte flow rate of 12.2μL/s, exhibits superhydrophobic feature with a water contact angle of 165° and sliding angle of <2°. Its potential application in drag reduction is also demonstrated.
      Graphical abstract image

      PubDate: 2017-05-18T10:56:21Z
       
  • The effect of Li0 on the corrosion of stainless steel alloy 316L exposed
           to molten LiCl-Li2O-Li
    • Abstract: Publication date: Available online 15 May 2017
      Source:Corrosion Science
      Author(s): Augustus Merwin, Dev Chidambaram
      A knowledge gap exists in our understanding of corrosion of alloys in molten LiCl-Li2O-Li. Coupons of stainless steel alloy 316L were exposed to LiCl-Li2O solutions containing up to 1wt%Li. A protective surface films of LiCrO2 forms in molten solutions containing up to 0.4wt%Li. The surfaces of samples exposed to melts containing greater than 0.4wt% Li were observed to be depleted of Cr and mostly devoid of oxides. Results indicate that material interactions with the LiCl-Li2O-Li system are governed by electrochemical oxidation phenomena when the Li concentration is low, while liquid metal effects dominate when the Li concentration is high.

      PubDate: 2017-05-18T10:56:21Z
       
  • IFC - Editorial Board
    • Abstract: Publication date: June 2017
      Source:Corrosion Science, Volume 121


      PubDate: 2017-05-13T07:55:54Z
       
  • Effects of electropolishing on corrosion and stress corrosion cracking of
           Alloy 182 in high temperature water
    • Abstract: Publication date: June 2017
      Source:Corrosion Science, Volume 121
      Author(s): Yaolei Han, En-Hou Han, Qunjia Peng, Wei Ke
      Effects of changes in surface chemical composition and microstructure by electropolishing on corrosion and stress corrosion cracking (SCC) of Alloy 182 in high temperature water were investigated. The results showed that electropolishing mitigated the corrosion, intergranular corrosion and SCC of Alloy 182. This is attributed to formation of the Cr-enriched, protective oxide on electropolished surface due to the enrichment of Cr by electropolishing. In particular, formation of the protective, blunted oxide at grain boundaries on electropolished surface mitigated the intergranular corrosion and caused a lower SCC susceptibility of Alloy 182.

      PubDate: 2017-05-13T07:55:54Z
       
  • Deflection behaviour of corrosion crack growth in the heat affected zone
           of CrNiMoV steel welded joint
    • Abstract: Publication date: June 2017
      Source:Corrosion Science, Volume 121
      Author(s): Linghua Luo, Yuhui Huang, Fu-Zhen Xuan
      Stress corrosion cracking (SCC) growth tests in heat affected zone (HAZ) of 25Cr2Ni2MoV steel welded joint were conducted in 3.5wt.% NaCl solution at 180°C. The deflection of SCC towards the hard side of HAZ was observed interestingly, which was ascribed to the combined effect of the graded mechanical and electrochemical properties in HAZ. In addition, the initiation of SCC deflection was related to the crack-tip in-plane constraint. Through the specimen thickness, higher crack-tip out-of-plane constraint on the mid-thickness plane caused a preferential SCC deflection compared to that on the surface.

      PubDate: 2017-05-13T07:55:54Z
       
  • Microstructure evolution and pitting corrosion behavior of UNS S32750
           super duplex stainless steel welds after short-time heat treatment
    • Abstract: Publication date: June 2017
      Source:Corrosion Science, Volume 121
      Author(s): Ziying Zhang, Hui Zhao, Huizhen Zhang, Jun Hu, Jiarui Jin
      The effects of short-time heat treatment at different temperatures on the microstructure evolution and pitting corrosion behavior of UNS S32750 super duplex stainless steel welds were investigated. The results demonstrated that the ferrite phase in the as-welded heat-affected zone overwhelmed the austenite phase in content and was easily attacked by pitting corrosion. After short-time heat treatment, the excessive ferritization in the heat-affected zone was significantly alleviated. The highest pitting corrosion resistance of the welds was obtained at 1080°C.

      PubDate: 2017-05-13T07:55:54Z
       
  • Synergy of corrosion-induced micro-cracking and hydrogen embrittlement on
           the structural integrity of aluminium alloy (Al-Cu-Mg) 2024
    • Abstract: Publication date: June 2017
      Source:Corrosion Science, Volume 121
      Author(s): Nikolaos D. Alexopoulos, Christina Charalampidou, Panagiotis Skarvelis, Stavros K. Kourkoulis
      Synergy of corrosion-induced micro-cracking and hydrogen embrittlement on the structural integrity of ultra-thin 2024-T3 aluminium sheets is investigated. Depth of attack of corrosion-induced cracks was experimentally measured and crack density was calculated. Stress intensity factor probability density follows the normal and lognormal distribution for the low and high exposure times, respectively. Transverse (T) rolling direction is more susceptible to corrosion attack and fracture, as 26% fracture probability was calculated after only 2h corrosion exposure when compared to only 11% for the Longitudinal (L) rolling direction. The synergetic mechanisms of (a) micro-cracks and (b) hydrogen embrittlement were experimentally derived from the plots of tensile ductility over depth of attack values. It was found that in the L rolling direction, 27% of the ductility decrease is attributed to the hydrogen embrittlement while the rest 73% to the micro-crack formation. For the case of T rolling direction, the respective contributions are 49% and 51% that proves its high susceptibility to corrosion attack and especially to hydrogen embrittlement.

      PubDate: 2017-05-13T07:55:54Z
       
  • Corrosion properties of nickel-aluminium bronze in natural
           seawater—Effect of galvanic coupling to UNS S31603
    • Abstract: Publication date: June 2017
      Source:Corrosion Science, Volume 121
      Author(s): Hedda Nordby Krogstad, Roy Johnsen
      The corrosion behaviour of galvanically coupled Nickel-Aluminium Bronze (NAB) and stainless steel (UNS S31603) during three weeks of exposure to natural seawater has been investigated. The approach included extensive testing of freely exposed NAB and cathodically polarized SS. The results imply that the galvanic current is limited by the cathode efficiency of SS, while the coupled potential is dictated by NAB. It is further reported that cathodic polarization of SS by NAB has a large effect on the cathode efficiency of SS.

      PubDate: 2017-05-13T07:55:54Z
       
  • Effect of exposure angle on the corrosion behavior of X70 steel under
           supercritical CO2 and gaseous CO2 environments
    • Abstract: Publication date: June 2017
      Source:Corrosion Science, Volume 121
      Author(s): Liang Wei, Xiaolu Pang, Meng Zhou, Kewei Gao
      The corrosion behavior of X70 steel with different exposure angles under supercritical CO2 and gaseous CO2 environments were studied. The results showed that the diffusion of the corrosive species in the water droplets in supercritical CO2 phase was more significant than that in aqueous phase, which accelerated the cathodic reactions. The corrosion rate in supercritical CO2 phase was much higher than that in gaseous CO2 phase due to the higher mutual solubility (g/L) of H2O and CO2 in supercritical CO2 phase. Exposure angle significantly affected the corrosion behavior of the steel in supercritical CO2 phase.

      PubDate: 2017-05-13T07:55:54Z
       
  • Corrosion behaviour of hot-dip Al–Zn–Si and Al–Zn–Si–3Mg
           coatings in NaCl solution
    • Abstract: Publication date: June 2017
      Source:Corrosion Science, Volume 121
      Author(s): Wei Liu, Qian Li, Mou-Cheng Li
      The corrosion behaviour of hot-dip Al–Zn–Si and Al–Zn–Si–3Mg coatings on steel sheets in NaCl solution were investigated by microstructural characterization, weight loss tests, and electrochemical methods Localized corrosion of the Al-rich phase in the Al–Zn–Si coating was observed. The exposure of the intermetallic layer was supposed to present galvanic corrosion and remarkably accelerate the consumption of remnant Al-rich phase. The MgZn2 phase was detected in the interdendritic Zn-rich region of the Al–Zn–Si–3Mg coating. The presence of the MgZn2 and Mg2Si phases contributed to delaying the occurrence of localized corrosion.

      PubDate: 2017-05-13T07:55:54Z
       
  • Effect of Cu on corrosion behavior of low alloy steel under the simulated
           bottom plate environment of cargo oil tank
    • Abstract: Publication date: June 2017
      Source:Corrosion Science, Volume 121
      Author(s): Xuehui Hao, Junhua Dong, Jie Wei, Ini-Ibehe Nabuk Etim, Wei Ke
      The effect of Cu on the corrosion behavior of low alloy steel under the simulated bottom plate environment of cargo oil tank was investigated by using gravimetric test, SEM, EDS, XPS, XRD and electrochemical measurements. The results indicate that the corrosion resistance of 16MnCu steel was higher than that of 16Mn steel, which was related to the deposition of nano-sized Cu particles on the surface. The deposited Cu might suppress both the anodic dissolution of the ferrite and hydrogen evolution reaction on the cementite, leading to the reduction of the galvanic effect caused by the residual cementite.

      PubDate: 2017-05-13T07:55:54Z
       
  • Influence of multispecies biofilms of Pseudomonas aeruginosa and
           Desulfovibrio vulgaris on the corrosion of cast iron
    • Abstract: Publication date: June 2017
      Source:Corrosion Science, Volume 121
      Author(s): Farhad Batmanghelich, Lei Li, Youngwoo Seo
      The impact of biofilm formation and bacterial solutions of Desulfovibrio vulgaris (a sulfate reducing bacteria, SRB) and Pseudomonas aeruginosa (PAO1, denitrifying bacteria) on the corrosion of cast iron was assessed and compared in this study. Corrosion experiments were separately conducted in respective culture media (in-situ) and in 3.5% NaCl (ex-situ, pH 4). The extent of cast iron corrosion diminishes in the co-presence of PAO1 and SRB compared to SRB alone. However, patchy and scanty biofilms of PAO1 did not protect the surface in 3.5% NaCl solution compared to SRB biofilms.
      Graphical abstract image

      PubDate: 2017-05-13T07:55:54Z
       
  • Oxidation of an austenitic stainless steel with or without alloyed
           aluminum in O2+10% H2O environment at 800°C
    • Abstract: Publication date: June 2017
      Source:Corrosion Science, Volume 121
      Author(s): Zhongdi Yu, Minghui Chen, Changbin Shen, Shenglong Zhu, Fuhui Wang
      Oxidation behavior in O2 +10% H2O at 800°C of an austenitic stainless steel with or without aluminum is investigated. The Al-free steel enters into breakaway oxidation stage after only 15h exposure, while the one with 2.7wt% aluminum shows high oxidation resistance. This minor amount of aluminum is lower than the critical content to form an intact alumina scale, but it promotes the formation of a thin Al-rich inner layer which is favor in prohibiting holes formation due to volatilization of CrO2(OH)2 and Kirkendall effect. A compact scale develops and protects the Al-containing steel very well.

      PubDate: 2017-05-13T07:55:54Z
       
  • Air-oxidation of FeCoNiCr-based quinary high-entropy alloys at
           700–900°C
    • Abstract: Publication date: June 2017
      Source:Corrosion Science, Volume 121
      Author(s): Wu Kai, C.C. Li, F.P. Cheng, K.P. Chu, R.T. Huang, L.W. Tsay, J.J. Kai
      The oxidation of three quinary equimolar high-entropy alloys, containing FeCoNiCrAl, FeCoNiCrMn, and FeCoNiCrSi was studied in dry air at 700–900°C. The Mn-containing alloy was single-phase, while both Al- and Si-containing alloys were dual-phase. The oxidation kinetics of all the alloys followed the parabolic rate law, regardless of temperature and alloy composition. The oxidation rates of both Al- and Si-containing alloys were lower than those of the quaternary FeCoNiCr alloy, while those of the Mn-containing alloy went to an opposite direction. Multiple scales formed on the alloys were strongly composition-dependent.

      PubDate: 2017-05-13T07:55:54Z
       
  • Sulphidation of Au-Ag alloys in the presence of pyrite (experimental data)
    • Abstract: Publication date: June 2017
      Source:Corrosion Science, Volume 121
      Author(s): Galina Palyanova, Konstantin Kokh, Yurii Seryotkin
      Dry annealing of Au-Ag alloys (Au, Au0.56Ag0.44, Au0.35Ag0.65, Au0.19Ag0.81 and Ag), together with pyrite as a source of sulphur, at 450°C was used to study the mechanisms of corrosion and transition of metal forms of noble metals to sulphide forms. In the experiment with Ag plates the silver completely sulphidates to form acanthite Ag2S and pyrite desulphidates to form pyrrhotite Fe1-yS. In the experiments with the Au-Ag plates there also formation of an uytenbogaardtite phase and ennobling of Au-Ag alloys take place. Gold in the absence of silver stabilizes pyrite and prevents its transition to pyrrhotite.

      PubDate: 2017-05-13T07:55:54Z
       
  • Salt fog corrosion behavior in a powder-processed
           icosahedral-phase-strengthened aluminum alloy
    • Abstract: Publication date: June 2017
      Source:Corrosion Science, Volume 121
      Author(s): T.J. Watson, M.A. Gordillo, A.T. Ernst, B.A. Bedard, M. Aindow
      The pitting corrosion resistance has been evaluated for a powder-processed Al-Cr-Mn-Co-Zr alloy which contains ≈35% by volume of an icosahedral quasi-crystalline phase and a little Al9Co2 in an Al matrix. ASTM standard salt fog exposure tests show that the alloy exhibits far lower corrosion pit densities and depths than commercial high-strength aerospace Al alloys under the same conditions. Electron microscopy data show that the salt fog exposure leads to the selective oxidation of the face-centered cubic Al matrix around the other phases, and to the development of a porous outer oxide scale.

      PubDate: 2017-05-13T07:55:54Z
       
  • How relevant is the adsorption bonding of imidazoles and triazoles for
           their corrosion inhibition of copper?
    • Abstract: Publication date: Available online 13 May 2017
      Source:Corrosion Science
      Author(s): Nataša Kovačević, Ingrid Milošev, Anton Kokalj
      Imidazole, 1,2,4-triazole and their 1-methyl derivatives were evaluated as copper corrosion inhibitors in NaCl solution by corrosion experiments and their bonding to Cu(111) was characterised by DFT calculations. Deprotonated triazole adsorbs considerably stronger than 1-methyl-triazole, whereas deprotonated imidazole displays only slightly more exothermic aqueous-phase adsorption free energy than 1-methyl and neutral imidazole. This suggests that triazole should be a more efficient inhibitor than 1-methyl-triazole, whereas the efficiency of imidazole and 1-methyl-imidazole should be similar. The experimental measurements only partly support this inference, because 1-methyl-imidazole accelerates corrosion at higher concentrations.

      PubDate: 2017-05-13T07:55:54Z
       
  • Oxidation behavior of a double-layer iridium-aluminum intermetallic
           coating on iridium at the temperature of 1400°C to 2000°C in the air
           atmosphere
    • Abstract: Publication date: Available online 12 May 2017
      Source:Corrosion Science
      Author(s): Li’an Zhu, Guangbao Du, Shuxin Bai, Hong Zhang, Yicong Ye, Yuanlin Ai
      Iridium (Ir) does not form a protective oxide barrier in high-temperature oxidizing environments, leading to a limited lifetime at high temperatures. To improve the oxidation resistance, pure Ir was modified by pack cementation to produce a double-layer iridium-aluminum (Ir-Al) coating. The oxidation behavior investigation on the Ir-Al coatings at temperatures from 1400°C to 2000°C demonstrated that the oxidation resistance of the Ir were significantly enhanced after the pack cementation treatment. Further detailed studies showed that the morphology and mass loss of the oxidized Ir-Al coating are considerably affected by the melting and oxidation of the IrAl2.7(3).

      PubDate: 2017-05-13T07:55:54Z
       
  • Relationship between Ni release and cytocompatibility of Ni-Ti-O nanotubes
           prepared on biomedical NiTi alloy
    • Abstract: Publication date: Available online 10 May 2017
      Source:Corrosion Science
      Author(s): Yanlian Liu, Zhiguo Ren, Long Bai, Mingxiang Zong, Ang Gao, Ruiqiang Hang, Husheng Jia, Bin Tang, Paul K. Chu
      To elucidate the relationship between Ni release and cytocompatibility of NiTi alloy, Ni-Ti-O nanotubes (NTs) are produced on its surface by anodization followed by annealing. The NiTi control has higher corrosion current density but releases less Ni than anodized samples, suggesting chemical dissolution of the NTs also contributes to Ni release. Although the annealed NTs release more Ni than that of NiTi control, they possess similar cytocompatibility. In addition, cytocompatibilitiy of the NTs with similar surface properties but have different Ni release levels is also comparable. These results suggest the amount of released Ni has little influence on the cytocompatibility.

      PubDate: 2017-05-13T07:55:54Z
       
  • IFC - Editorial Board
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120


      PubDate: 2017-05-08T08:36:28Z
       
  • Atomic diffusion induced degradation in bimetallic layer coated cemented
           tungsten carbide
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Zirong Peng, Michael Rohwerder, Pyuck-Pa Choi, Baptiste Gault, Thorsten Meiners, Marcel Friedrichs, Holger Kreilkamp, Fritz Klocke, Dierk Raabe
      We investigated the temporal degradation of glass moulding dies, made of cemented tungsten carbide coated with PtIr on an adhesive Cr or Ni interlayer, by electron microscopy and atom probe tomography. During the exposure treatments at 630°C under an oxygen partial pressure of 1.12×10−23 bar, Cr (Ni) was found to diffuse outwards via grain boundaries in the PtIr, altering the surface morphology. Upon dissolution of the interlayer, the WC substrate also started degrading. Extensive interdiffusion processes involving PtIr, Cr (Ni) and WC took place, leading to the formation of intermetallic phases and voids, deteriorating the adhesion of the coating.

      PubDate: 2017-05-08T08:36:28Z
       
  • Investigation of processes occurring at cathodically protected underground
           installations: Experimental study of pH alteration and mathematical
           modeling of oxygen transport in soil
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Roman Kodým, Dalimil Šnita, Vlastimil Fíla, Karel Bouzek, Milan Kouřil
      A detailed analysis of the complex processes occurring at the surface of cathodically protected underground metal installations is presented. In the first part an alteration of soil pH in vicinity of cathodically polarized buried specimen of carbon-steel pipe is investigated experimentally. In the second part a stationary two‐phase oxygen transport to a defect in the protective coating of an underground pipe is studied by mathematical modeling and protection current solely given by oxygen reduction are calculated. This information is crucial to an evaluation of subsequent processes taking place at a protected metal surface, which is part of a follow-up study.
      Graphical abstract image

      PubDate: 2017-05-08T08:36:28Z
       
  • Investigation of processes occurring at cathodically protected underground
           installations: Mathematical modeling of reaction transport processes in
           soil
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Roman Kodým, Dalimil Šnita, Vlastimil Fíla, Karel Bouzek, Milan Kouřil
      A dynamic mathematical modeling study of reaction‐transport processes taking place in the vicinity of a defect in coating of underground pipeline protected by cathodic protection is presented. The main chemical reactions providing buffering ability of the soil system (water autoprotolysis, carbon dioxide/bicarbonate/carbonate system, dissociation/precipitation of calcium carbonate) are considered. The model calculations provided qualitative and quantitative information on the dynamic variation of the soil solution pH after application of cathodic protection. A significant pH increase (>12), due solely to oxygen reduction, is proved. A moderate polarization (around Kuhn’s postulated protective potential) is, therefore, sufficient for effective protection of underground structures.
      Graphical abstract image

      PubDate: 2017-05-08T08:36:28Z
       
  • Degradation of natural fiber in ternary blended cement composites
           containing metakaolin and montmorillonite
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Jianqiang Wei, Christian Meyer
      The influence of a coupled substitution of metakaolin and montmorillonite in Portland cement on degradation of natural fiber was investigated. In addition to durability of fiber-cement composites, degradation of the embedded natural fiber was directly investigated by means of tensile properties, crystallinity, chemical components and microstructure. The results indicate that the combination of these clay minerals validates their synergic effect on mitigating fiber’s deterioration by modifying hydration products and reducing alkalinity of pore solutions in cement. Correlations between cement hydration and fiber degradation demonstrate that both mineralization and alkali hydrolysis of natural fiber can be substantially mitigated through this method.

      PubDate: 2017-05-08T08:36:28Z
       
  • Electrodeposited silica film interlayer for active corrosion protection
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Yan-Hua Liu, Jun-Bo Xu, Jin-Tao Zhang, Ji-Ming Hu
      In the present work, a pragmatic painting system with promising active protection property is proposed using electrodeposited silica (e-SiO2) interlayer as the nanocontainer of inhibitors. A 10μm thick, highly porous and well adherent sol-gel silica film was prepared at mild steel substrate under the aid of electro-assist technique. Such film was capable of embedding desired amount of corrosion inhibitors (polyvinylpyrrolidone and zinc gluconate), upon which the epoxy coating was covered. Both the accelerated corrosion tests on the scratched coating and the in-situ electrochemical measurements of intact sample revealed the significantly improved corrosion resistance of the novel coating system.
      Graphical abstract image

      PubDate: 2017-05-08T08:36:28Z
       
  • Microstructure and corrosion resistance of directionally solidified
           Mg-2wt.% Zn alloy
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Hongmin Jia, Xiaohui Feng, Yuansheng Yang
      The microstructure and corrosion resistance of directionally solidified Mg–2wt.% Zn alloy with different growth rates were investigated. Optical microscopy observations showed that the microstructure of directionally solidified Mg-2Zn alloy transformed from coarse cellular to fine cellular, undeveloped dendritic and finally dendritic structures as the growth rate increased from 20μm/s to 60μm/s, 120μm/s and 200μm/s, respectively. The results of electrochemical measurement and immersion test in 0.9wt.% NaCl solution revealed that the corrosion resistance of directionally solidified Mg-2Zn alloy strongly depends on the microstructure. The samples with fine cellular structure have the highest corrosion resistance, which mainly due to the reduction of susceptible grain boundaries and homogenous distribution of Zn element.

      PubDate: 2017-05-08T08:36:28Z
       
  • Oxidation behavior of Zr9S2 precipitates in Zr-0.8Sn-1.0Nb-0.3Fe-0.1Cr-xS
           alloys
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Jiao Huang, Meiyi Yao, Bing Chen, Yajing Mao, Xue Liang, Jinlong Zhang, Bangxin Zhou, Qiang Li
      Effect of trace sulphur (16–540μg/g, S) on the corrosion resistance of zirconium alloys and oxidation behavior of Zr9S2 precipitates were investigated. Results show that S dissolved in α-Zr is among 63 ∼170μg/g. Layered Zr9S2 particles precipitate when S addition reaches 170μg/g. Zr9S2 precipitates oxidize easily and contribute to humps in the oxide films. Oxidation of Zr9S2 precipitates causes regular shaped cavities with nanometer size grains at the inner surfaces of oxide films. The presence of cauliflower-shaped humps at the inner surfaces of oxide films is also discussed.

      PubDate: 2017-05-08T08:36:28Z
       
  • Corrosion behavior of nitrogen alloyed martensitic stainless steel in
           chloride containing solutions
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Xing Qi, Honghuan Mao, Yitao Yang
      Influence of nitrogen alloying on corrosion resistance of martensitic stainless steels (MSSs) with different nitrogen contents was investigated by immersion corrosion measurement and electrochemical measurement in chloride medium. It was observed that the nitrogen bearing MSSs exhibit more superior corrosion resistance, and an optimum range of nitrogen content between 0.04-0.05wt% was found. The degradation of corrosion properties happened in higher nitrogen bearing samples is attributed to the occurrence of more concentrated Cr-depleted zones resulted from massive Cr-rich M23C6 carbides precipitation, although nitrogen addition is believed to be able to improve the corrosion resistance of MSSs effectively.

      PubDate: 2017-05-08T08:36:28Z
       
  • The effects of thioureido imidazoline and NaNO2 on passivation and pitting
           corrosion of X70 steel in acidic NaCl solution
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Yu Zuo, Li Yang, Yongjun Tan, Yishan Wang, Jingmao Zhao
      The effects of thioureido imidazoline and NaNO2 on passivation and pitting corrosion of X70 steel in acidic NaCl solution were studied. The addition of thioureido imidazoline promoted passivation of the steel in the NaCl-NaNO2 solution, but the pitting potential decreased, which was attributed to the preferential adsorption of residue thiourea monomers in the inhibitor. With longer immersion time, the pitting potential in solution with thioureido imidazoline+NaNO2 increased to the value with only NaNO2. A multi-layer film formed with thiourea rich in inner and imidazoline rich in outer. The compounded inhibition effect of thioureido imidazoline and NaNO2 was discussed.

      PubDate: 2017-05-08T08:36:28Z
       
  • Corrosion behaviour of N80 carbon steel in formation water under dynamic
           supercritical CO2 condition
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): G.A. Zhang, D. Liu, Y.Z. Li, X.P. Guo
      The corrosion behaviour of N80 carbon steel under dynamic supercritical CO2-water environment was studied by weight loss, electrochemical measurements, and surface analysis. It is demonstrated that there is no essential difference in the electrochemical corrosion mechanism under supercritical CO2 and non-supercritical CO2 environments. The corrosion rate under dynamic condition is higher than that under static condition, especially in the initial period. There is difference in the impedance spectra under dynamic and static conditions in the initial period, but no difference in the late period. Flow fluid hinders the formation of protective corrosion products film, and then increases the corrosion rate.

      PubDate: 2017-05-08T08:36:28Z
       
  • The alumina scale growth and interdiffusion behaviour of Pt modified AlSiY
           coating during cyclic oxidation
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): R.D. Liu, S.M. Jiang, C.Q. Guo, J. Gong, C. Sun
      The cyclic oxidation behaviour of Pt modified AlSiY coating and AlSiY coating at 1100°C were investigated. The results showed the Pt modified AlSiY coating had lower oxidation rate than AlSiY coating. After 1 cycle, minor θ-Al2O3 was observed in AlSiY coating, while only α-Al2O3 was found in Pt modified AlSiY coating. After cyclic oxidation, the surface roughness of Pt modified AlSiY coating was lower as compared to AlSiY coating. Besides, the addition of Pt in AlSiY coating decreased the quantity and average size of TCP in the secondary reaction zone (SRZ) after cyclic oxidation.

      PubDate: 2017-05-08T08:36:28Z
       
  • Synergistic effect of reactive element co-doping in two-phase
           (γ’+β) Ni-Al alloys
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Jian He, Hui Peng, Shengkai Gong, Hongbo Guo
      To propose reactive element (RE) co-doping strategy, the oxidation behaviour of Dy, Hf, Y, Zr single- and co-doped Ni-30Al alloys was comparatively studied. All the alloys containing Dy or Y exhibited improved scale adhesion due to the pinning effect of the pegs at the scale/alloy interfaces and the reduced residual stress by the flaky oxides formed on the alloy surfaces. Compared to the corresponding RE single-doping, Dy/Hf, Dy/Zr, Hf/Y and Y/Zr co-doping further reduced the scale growth rate, revealing a synergistic effect. The role of reactive element co-segregation in the formation of synergistic effect was analyzed.

      PubDate: 2017-05-08T08:36:28Z
       
  • Synthesis and characterisation of composite nanoparticles of mesoporous
           silica loaded with inhibitor for corrosion protection of Cu-Zn alloy
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Xin Ma, Likun Xu, Wei Wang, Zhifeng Lin, Xiangbo Li
      A new type of composite nanoparticles (CNPs) was prepared by loading a typical inhibitor 1-hydroxybenzotriazole (HOBT) for corrosion protection of copper alloy in mesoporous silica nano-containers. The release kinetics of HOBT from CNPs in 3.5% NaCl solution was in conformity with the first order kinetic model. The open circuit potential monitoring, the morphology observation and the scanning Kelvin probe measurement of the Cu-Zn alloy in 3.5% NaCl solution with CNPs proved that a uniformly protective film was formed on the surface. Electrochemical impedance spectroscopy was employed to analyse the corrosion inhibition process of CNPs on the Cu-Zn alloy.
      Graphical abstract image

      PubDate: 2017-05-08T08:36:28Z
       
  • Internal oxidation behaviour of Fe-Mn-Al-C duplex light-weight steels with
           good combination of strength and ductility
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Wei Peng, Zhaoyu Wu, Yulai Xu, Qingxuan Ran, Wanjian Xu, Jun Li, Xueshan Xiao
      The oxidation behaviour of Fe-20Mn-8Al-xC (x =0.25-0.35wt. %) duplex light-weight steels at 1000°C in dry air has been investigated. The results show that the increased carbon content enlarges austenite phase fractions and degrades oxidation resistance to high temperature. The preferential oxidation of manganese at high temperature promotes phase transformation of austenite→ferrite, and offers pathways for aluminium diffusion. Aluminium enriches at the boundary of the austenite internal oxidation layer. A continuous and compact pure Al2O3 layer has been observed between iron and manganese oxides and oxidation-induced ferrite layers. The formed Al2O3 layer can further prevent oxidation of Fe-20Mn-8Al-xC duplex steels.

      PubDate: 2017-05-08T08:36:28Z
       
  • Corrosion induced stress field and cracking time of reinforced concrete
           with initial defects: Analytical modeling and experimental investigation
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Xiaogang Zhang, Minhui Li, Luping Tang, Shazim Ali Memon, Guojun Ma, Feng Xing, Hongfang Sun
      This paper presents an analytical model for calculation of corrosion induced stress field and cracking time of concrete cover with initial defects in a reinforced concrete. In the proposed model, two types of initial defects in concrete cover (surface and middle defect) were considered. Experiments were also performed to validate the effectiveness and accuracy of the proposed model. Based on the model analysis, it was found out that initial defects have significant influence on the stress distribution, the corrosion induced expansion pressure in concrete cover, the critical mass of corrosion products, and the cracking time of concrete cover.

      PubDate: 2017-05-08T08:36:28Z
       
  • Corrosion in austenitic steels and nickel-based alloys caused by liquid
           tin at high temperature
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Thomas Emmerich, Carsten Schroer
      Austenitic steels as well as nickel-based alloys were exposed to liquid tin, the former at nominally 500 and 700°C and the latter at nominally 700 and 1000°C, using sealed tube samples that were filled with liquid tin. The duration of the tests ranged from 25 to 100h. In the evaluation of the experimental findings, special emphasis is laid on the identification of principal corrosion modes and possible influences of the applied experimental technique, most notably non-uniform temperature across the sample capsules. Indicative corrosion rates are presented.

      PubDate: 2017-05-08T08:36:28Z
       
  • Synthesis and inhibitory effect of
           N,N'-bis(1-phenylethanol)ethylenediamine against steel corrosion in HCl
           Media
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Gökmen Sığırcık, Deniz Yildirim, Tunç Tüken
      A new organic compound N,N'-bis(1-phenylethanol)ethylenediamine was synthesized and its inhibition efficiency was studied with electrochemical impedance spectroscopy and potentiodynamic measurement, as well as solution assay analysis. The influences of temperature and inhibitor concentration were investigated for explaining the inhibition mechanism. It was shown that both physical and chemical type adsorptive interactions occur via π-bonding electrons, NH and OH groups. Besides, SEM, UV–visible and FTIR analyses were carried out to investigate the structure of protective layer formed on the steel surface.

      PubDate: 2017-05-08T08:36:28Z
       
  • The influence of microstructural evolution on selective corrosion in
           duplex stainless steel flux-cored arc welded joints
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Zhiqiang Zhang, Hongyang Jing, Lianyong Xu, Yongdian Han, Lei Zhao
      The influence of microstructural evolution on selective corrosion in duplex stainless steel flux-cored arc welding joint was investigated by the modified double loop electrochemical potentiokinetic reactivation in acidified chloride. Due to the lower pitting resistance equivalent number, the secondary austenite was preferentially attacked over the ferrite and primary austenite phases, and inclusions acted as nucleation sites for micro-pits in the weld metal. Localised corrosion was generated in the secondary austenite and Cr-depleted zone around the Cr2N and sigma phases in the heat-affected zone. The weld metal exhibited the smallest susceptibility to localised corrosion because of the least weak phases.

      PubDate: 2017-05-08T08:36:28Z
       
  • Isolation or corrosion of microporous alumina in contact with various
           CaO-Al2O3-SiO2 slags
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Lvping Fu, Ao Huang, Pengfei Lian, Huazhi Gu
      Is the microporous structure able to protect lightweight alumina aggregates against corrosion of various molten slags? The effects of the slag compositions and structural parameters of alumina aggregates on their slag resistance behavior were investigated, and a dissolution rate model was proposed to describe the dissolution of alumina in the various molten slags inside the pores. Compared to the apparent porosity, the pore size has a crucial impact on dissolution of the lightweight alumina aggregates in the molten slags. A balance between the alumina dissolution rate and the solid phase precipitation rate should be achieved to form an isolation layer.
      Graphical abstract image

      PubDate: 2017-05-08T08:36:28Z
       
  • Stress corrosion cracking of fusion boundary for 316L/52M dissimilar metal
           weld joints in borated and lithiated high temperature water
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Ruolin Zhu, Jianqiu Wang, Zhiming Zhang, En-Hou Han
      The stress corrosion cracking (SCC) crack growth rates (CGRs) at the fusion boundary (FB) for 316L/52M weld joints were measured using direct current potential drop systems in borated and lithiated high temperature water. The cracks propagated along the FB and were blocked after propagating into the composition transient zone. The cracking mode is both intergranular and transgranular. The CGRs at the FB are similar to those in the heat-affected zone (HAZ) in oxygenated water, but slightly higher than those in the HAZ in hydrogenated water. The temperature dependences of CGR in both hydrogenated and oxygenated water are discussed.

      PubDate: 2017-05-08T08:36:28Z
       
  • The inhibitive effects of AC-treated mixed self-assembled monolayers on
           copper corrosion
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Huanjie Yu, Caixia Li, Boyu Yuan, Liang Li, Chao Wang
      The inhibitive effects of alternating current-treated (AC-treated) mixed self-assembled monolayer (SAMHL/DT) with 2-(Pyridin-2-yliminomethyl)-phenol (HL) and dodecanethiol (DT) on copper corrosion have been studied by using the scanning electrochemical microscope (SECM) combined with Tafel and electrochemical impedance spectroscopy (EIS) methods When the AC-treated potential is applied in the cathodic region, the inhibition efficiency increases, and the pitting dynamic processes are inhibited. All the results reveal that the AC-treated effects are related to both the formation of complex compounds and the reduction of the oxide film on the surface of copper.

      PubDate: 2017-05-08T08:36:28Z
       
  • New insights on the role of CO2 in the mechanism of carbon steel corrosion
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Tatiana das Chagas Almeida, Merlin Cristina Elaine Bandeira, Rogaciano Maia Moreira, Oscar Rosa Mattos
      CO2 corrosion is an important process affecting oil and gas industries. Understanding the role of CO2 in the mechanism of carbon steel dissolution may contribute to better predict corrosion rate. Impedance, local pH and weight loss tests were measured using X65 carbon steel at pH 4 in the presence and absence of CO2, including high CO2 pressure experimental conditions. The results did not evidence a direct reaction of CO2 on the free iron surface.

      PubDate: 2017-05-08T08:36:28Z
       
  • Atmospheric corrosion assessed from corrosion images using fuzzy
           Kolmogorov–Sinai entropy
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Da-Hai Xia, Chao Ma, Shizhe Song, Weixian Jin, Yashar Behnamian, Hongqiang Fan, Jihui Wang, Zhiming Gao, Wenbin Hu
      Fuzzy Kolmogorov–Sinai (K–S) entropy was used to characterize the irregularity of the spatial information distribution in a corrosion image. The fuzzy K–S entropy was measured for horizontal and vertical orientations of corrosion images of steel samples exposed to a marine atmosphere over 191days. The fuzzy K–S entropy for horizontal and vertical orientations decreased as the corrosion propagated. A relationship between the fuzzy K–S entropy and the weight loss in the steel sample can be presented with a linear mathematical expression. Fuzzy K–S entropy was found to be a semiquantitative and fast method to quantify atmospheric corrosion.
      Graphical abstract image

      PubDate: 2017-05-08T08:36:28Z
       
  • Corrigendum to “Inhibitory effect of cetyltrimethylammonium bromide on
           the electrochemical migration of tin in thin electrolyte layers containing
           chloride ions” [Corros. Sci. 118 (2017) 190–201]
    • Abstract: Publication date: 15 May 2017
      Source:Corrosion Science, Volume 120
      Author(s): Bokai Liao, Zhenyu Chen, Qubing Qiu, Xingpeng Guo


      PubDate: 2017-05-08T08:36:28Z
       
 
 
JournalTOCs
School of Mathematical and Computer Sciences
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