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Influence of the secondary phase on micro galvanic corrosion of low carbon bainitic steel in NaCl solution
Wei, J; Dong, JH; Zhou, YT; He, XY; Wang, CG; Ke, W; Dong, JH (reprint author), Chinese Acad Sci, Inst Met Res, 62 Wencui Rd, Shenyang 110016, Liaoning, Peoples R China.
2018-05-01
Source PublicationMATERIALS CHARACTERIZATION
ISSN1044-5803
Volume139Pages:401-410
AbstractThe corrosion behavior of lath bainitic and granular bainitic steels in 0.01 mol/L NaCl solution was studied by SEM and TEM observation, electrochemical monitoring and weight loss test. The results indicate that the micro galvanic couple forms between the steel matrix and the secondary phase, which causes non-uniform micro corrosion on surfaces of two steels. In lath bainitic steel, the secondary phase omega acts as the micro anode. While in granular bainitic steel, the secondary phase M acts as the micro cathode. Moreover, the corrosion acceleration caused by micro galvanic couple is obvious in the initial immersion stage, and then it becomes weak during the long term corrosion.; The corrosion behavior of lath bainitic and granular bainitic steels in 0.01 mol/L NaCl solution was studied by SEM and TEM observation, electrochemical monitoring and weight loss test. The results indicate that the micro galvanic couple forms between the steel matrix and the secondary phase, which causes non-uniform micro corrosion on surfaces of two steels. In lath bainitic steel, the secondary phase omega acts as the micro anode. While in granular bainitic steel, the secondary phase M acts as the micro cathode. Moreover, the corrosion acceleration caused by micro galvanic couple is obvious in the initial immersion stage, and then it becomes weak during the long term corrosion.
description.department[wei, jie ; dong, junhua ; zhou, yangtao ; he, xiaoyan ; wang, changgang ; ke, wei] chinese acad sci, inst met res, 62 wencui rd, shenyang 110016, liaoning, peoples r china
KeywordLow-alloy Steel Bottom Plate Environment Cargo Oil Tank Mechanical-properties Pitting Corrosion Mns Inclusions Stainless-steel In-situ Microstructure Behavior
Subject AreaMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
Funding OrganizationNational Natural Science Foundation of China [51501201]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79323
Collection中国科学院金属研究所
Corresponding AuthorDong, JH (reprint author), Chinese Acad Sci, Inst Met Res, 62 Wencui Rd, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Wei, J,Dong, JH,Zhou, YT,et al. Influence of the secondary phase on micro galvanic corrosion of low carbon bainitic steel in NaCl solution[J]. MATERIALS CHARACTERIZATION,2018,139:401-410.
APA Wei, J.,Dong, JH.,Zhou, YT.,He, XY.,Wang, CG.,...&Dong, JH .(2018).Influence of the secondary phase on micro galvanic corrosion of low carbon bainitic steel in NaCl solution.MATERIALS CHARACTERIZATION,139,401-410.
MLA Wei, J,et al."Influence of the secondary phase on micro galvanic corrosion of low carbon bainitic steel in NaCl solution".MATERIALS CHARACTERIZATION 139(2018):401-410.
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