Enhanced corrosion resistance in Fe-based amorphous coatings through eliminating Cr-depleted zones

IMR OpenIR

	Enhanced corrosion resistance in Fe-based amorphous coatings through eliminating Cr-depleted zones
	Wu, J; Zhang, SD; Sun, WH; Gao, Y; Wang, JQ; Wang, JQ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China.
	2018-05-15
发表期刊	CORROSION SCIENCE
ISSN	0010-938X
卷号	136 页码:161-173
摘要	Localised Cr depletion caused by defects in Fe-based amorphous coatings, e.g. pores, oxides and crystalline phases, is thought to be the dominating reason for decreasing corrosion resistance in the coatings. An electrochemical polarisation treatment was used to selectively dissolve Cr-depleted zones in the coatings. The corrosion behaviour of the coatings was studied by potentiodynamic and potentiostatic polarisation and electrochemical impedance spectroscopy in 3.5 wt.% NaCl solution. With the elimination of Cr-depleted zones the corrosion resistance of the coatings was enhanced, with an order of magnitude reduction in the passive current density together with the improvement of passive film stability.; Localised Cr depletion caused by defects in Fe-based amorphous coatings, e.g. pores, oxides and crystalline phases, is thought to be the dominating reason for decreasing corrosion resistance in the coatings. An electrochemical polarisation treatment was used to selectively dissolve Cr-depleted zones in the coatings. The corrosion behaviour of the coatings was studied by potentiodynamic and potentiostatic polarisation and electrochemical impedance spectroscopy in 3.5 wt.% NaCl solution. With the elimination of Cr-depleted zones the corrosion resistance of the coatings was enhanced, with an order of magnitude reduction in the passive current density together with the improvement of passive film stability.
部门归属	[wu, j. ; zhang, s. d. ; sun, w. h. ; wang, j. q.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china ; [wu, j.] univ sci & technol china, sch mat sci & engn, shenyang 110016, liaoning, peoples r china ; [gao, y.] northeastern univ, minist educ, key lab electromagnet proc mat, shenyang 110819, liaoning, peoples r china
关键词	Metallic-glass Coatings Stainless-steel Surface Distributions Erosion-corrosion Pitting Corrosion Wear-resistance Heat-treatment Sam 1651 Behavior Alloys
学科领域	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者	National Key Research and Development Program of China [2016YFB1100204]; National Natural Science Foundation of China [51471166, 51131006, 51701214]
收录类别	SCI
语种	英语
WOS记录号	WOS:000430630500014
引用统计	被引频次：107[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79305
专题	中国科学院金属研究所
通讯作者	Wang, JQ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Wu, J,Zhang, SD,Sun, WH,et al. Enhanced corrosion resistance in Fe-based amorphous coatings through eliminating Cr-depleted zones[J]. CORROSION SCIENCE,2018,136:161-173.
APA	Wu, J,Zhang, SD,Sun, WH,Gao, Y,Wang, JQ,&Wang, JQ .(2018).Enhanced corrosion resistance in Fe-based amorphous coatings through eliminating Cr-depleted zones.CORROSION SCIENCE,136,161-173.
MLA	Wu, J,et al."Enhanced corrosion resistance in Fe-based amorphous coatings through eliminating Cr-depleted zones".CORROSION SCIENCE 136(2018):161-173.