Dissolution and repair of passive film on Cu-bearing 304L stainless steels immersed in H2SO4 solution

doi:10.1016/j.jmst.2018.02.017

CORC > 金属研究所 > 中国科学院金属研究所

	Dissolution and repair of passive film on Cu-bearing 304L stainless steels immersed in H2SO4 solution
	Zhang, Xinrui 1,2; Zhao, Jinlong 1,2; Xi, Tong 2; Shahzad, M. Babar 2; Yang, Chunguang 2; Yang, Ke 2
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2018-11-01
卷号	34 期号:11 页码:2149-2159
关键词	Cu-bearing stainless steel 304L-Cu Passive film
ISSN号	1005-0302
DOI	10.1016/j.jmst.2018.02.017
通讯作者	Yang, Chunguang(cgyang@imr.ac.cn) ; Yang, Ke(kyang@imr.ac.cn)
英文摘要	The antibacterial Cu-bearing 304L stainless steel is a new kind of structural and functional integrated metal material. In this work, evolution behavior of passive film of different heat treated Cu-beanng 304L stainless steel immersed in 0.5 M H2SO4 solution was investigated by using electrochemical measurements, atomic force microscopy (AFM) observation and X-ray photoelectron spectroscopy (XPS) analysis. The results show that the solution and aging treated samples have the similar polarization behaviors. The passive film impedance experiences an initial decrease within 7 days followed by a subsequent increase, while the defect density of passive film presents the opposite trend. Meanwhile, the evolution of surface morphology and the estimated thickness of the passive film confirm that it experiences initial dissolution and follow-up repair. Furthermore, the Cr3+ content in passive film undergoes sequential reduction to increase, however the variation tendency of Cu2+ content is just opposite, indicating that the content variation of Cr and Cu in passive film reflects the competitive process of film dissolution and repair. In addition, compared with solution treated samples, aged samples have a bigger i(corr) value and the rougher passive film. This indicates that the passive film of solution treated steel is more compact and stable. (C) 2018 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	National Key Research and Development Program of China[2016YFB0300205] ; National Natural Science Foundation of China[51501188] ; National Natural Science Foundation of China[51771199] ; National Natural Science Foundation of China[51371168] ; State Key Program of National Natural Science of China[51631009]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000439396700020
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; State Key Program of National Natural Science of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/135896]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yang, Chunguang; Yang, Ke
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xinrui,Zhao, Jinlong,Xi, Tong,et al. Dissolution and repair of passive film on Cu-bearing 304L stainless steels immersed in H2SO4 solution[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2018,34(11):2149-2159.
APA	Zhang, Xinrui,Zhao, Jinlong,Xi, Tong,Shahzad, M. Babar,Yang, Chunguang,&Yang, Ke.(2018).Dissolution and repair of passive film on Cu-bearing 304L stainless steels immersed in H2SO4 solution.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,34(11),2149-2159.
MLA	Zhang, Xinrui,et al."Dissolution and repair of passive film on Cu-bearing 304L stainless steels immersed in H2SO4 solution".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 34.11(2018):2149-2159.