Study on Microbiologically Influenced Corrosion Resistance of Stainless Steels With Weld Seams

doi:10.3389/fmats.2020.00083

CORC > 金属研究所 > 中国科学院金属研究所

	Study on Microbiologically Influenced Corrosion Resistance of Stainless Steels With Weld Seams
	Shi, Xianbo 1,2; Yang, Ke 1; Yan, Maocheng 1; Yan, Wei 1,2; Shan, Yiyin 1,2
刊名	FRONTIERS IN MATERIALS
	2020-05-20
卷号	7 页码:11
关键词	microbiologically influenced corrosion austenitic stainless steel duplex stainless steel weld seam base metal pitting corrosion
ISSN号	2296-8016
DOI	10.3389/fmats.2020.00083
通讯作者	Shi, Xianbo(xbshi@imr.ac.cn) ; Yang, Ke(kyang@imr.ac.cn)
英文摘要	Stainless steels are widely used in various industries due to their desirable combination of mechanical properties and corrosion resistance. However, corrosion of stainless steels was reported seriously on the weld seam areas, and it is not exceptive for microbiologically influenced corrosion (MIC). In the present study, MIC resistance of two austenitic stainless steels (A1, A2 for short) and a duplex stainless steel (D1 for short) with weld seams were comparatively studied by measurement of average and maximum pit depths and electrochemical tests. Experimental results showed that the pit depth on the weld seam was much deeper than that on the base metal for all the stainless steels. The variations in linear polarization resistance (R-LPR) values on base metal and weld seam showed that weld seam could promote MIC. Thus, the study indicated that the weld seam accelerated the MIC. In addition, A1 steel with higher Cu content showed the best MIC resistance, followed by A2 steel with lower Cu content, and D1 steel without Cu addition exhibited the worst resistance to MIC, indicating that Cu addition in stainless steels is speculated to be beneficial to the MIC resistance. The mechanisms of Cu improving the MIC resistance in the stainless steels were discussed.
资助项目	Doctoral Scientific Research Foundation of Liaoning Province[20180540083] ; Shenyang Science and Technology Research Funding[18-013-0-53] ; China Pipeline Research Organization[CPRO2018NO4]
WOS研究方向	Materials Science
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000539463300001
资助机构	Doctoral Scientific Research Foundation of Liaoning Province ; Shenyang Science and Technology Research Funding ; China Pipeline Research Organization
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/139268]
专题	金属研究所_中国科学院金属研究所
通讯作者	Shi, Xianbo; Yang, Ke
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China 2.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Shi, Xianbo,Yang, Ke,Yan, Maocheng,et al. Study on Microbiologically Influenced Corrosion Resistance of Stainless Steels With Weld Seams[J]. FRONTIERS IN MATERIALS,2020,7:11.
APA	Shi, Xianbo,Yang, Ke,Yan, Maocheng,Yan, Wei,&Shan, Yiyin.(2020).Study on Microbiologically Influenced Corrosion Resistance of Stainless Steels With Weld Seams.FRONTIERS IN MATERIALS,7,11.
MLA	Shi, Xianbo,et al."Study on Microbiologically Influenced Corrosion Resistance of Stainless Steels With Weld Seams".FRONTIERS IN MATERIALS 7(2020):11.