Influence of the secondary phase on micro galvanic corrosion of low carbon bainitic steel in NaCl solution

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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.
刊名	MATERIALS CHARACTERIZATION
	2018-05-01
卷号	139 页码:401-410
关键词	Low-alloy Steel Bottom Plate Environment Cargo Oil Tank Mechanical-properties Pitting Corrosion Mns Inclusions Stainless-steel In-situ Microstructure Behavior
ISSN号	1044-5803
英文摘要	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.; 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.
学科主题	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
语种	英语
资助机构	National Natural Science Foundation of China [51501201]
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79323]
专题	金属研究所_中国科学院金属研究所
通讯作者	Dong, JH (reprint author), Chinese Acad Sci, Inst Met Res, 62 Wencui Rd, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 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.