Pitting mechanism on an austenite stainless steel nanocrystalline coating investigated by electrochemical noise and in-situ AFM analysis

IMR OpenIR

	Pitting mechanism on an austenite stainless steel nanocrystalline coating investigated by electrochemical noise and in-situ AFM analysis
	L. Liu; Y. Li; F. H. Wang
	2008
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	54 期号:2 页码:768-780
摘要	The pitting corrosion behavior of an austenite stainless steel with polycrystalline (PC) and nanocrystalline (NC) microstructure in 3.5% NaCl solution was investigated by electrochemical noise (EN) and in-situ atomic force microscopy (AFM) under anodic potential. The power spectral density (PSD) and wavelet transform have been employed to analyze the EN data. The pitting corrosion resistance of the NC coating was much higher than that of the PC alloy. with different pitting mechanisms observed for both specimens; a slow metastable pit generation and healing for the PC alloy and a fast metastable pit initiation and death for the NC coating. There was good conformity between the EN and the in-situ AFM analysis. The pitting corrosion mechanism has been discussed according to the EN analysis and the in-situ AFM observations. (C) 2008 Elsevier Ltd. All rights reserved.
部门归属	[liu, li; li, ying; wang, fuhui] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;li, y (reprint author), chinese acad sci, inst met res, state key lab corros & protect, wencui rd 62, shenyang 110016, peoples r china;liying@imr.ac.cn
关键词	Stainless Steel Grain Size In-situ Afm Wavelet Transform Metastable Pits Ni-based Superalloy Corrosion Behavior Chloride Systems Alloys Az91d Nacl
URL	查看原文
WOS记录号	WOS:000263282400094
引用统计	被引频次：86[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/321006/32954
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Liu,Y. Li,F. H. Wang. Pitting mechanism on an austenite stainless steel nanocrystalline coating investigated by electrochemical noise and in-situ AFM analysis[J]. Electrochimica Acta,2008,54(2):768-780.
APA	L. Liu,Y. Li,&F. H. Wang.(2008).Pitting mechanism on an austenite stainless steel nanocrystalline coating investigated by electrochemical noise and in-situ AFM analysis.Electrochimica Acta,54(2),768-780.
MLA	L. Liu,et al."Pitting mechanism on an austenite stainless steel nanocrystalline coating investigated by electrochemical noise and in-situ AFM analysis".Electrochimica Acta 54.2(2008):768-780.