The Electrochemical and Morphological Characteristics of Single Metastable pit for 304 Stainless Steel under Potentiostatic Polarization

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	The Electrochemical and Morphological Characteristics of Single Metastable pit for 304 Stainless Steel under Potentiostatic Polarization
	Guan, L.; Zhou, Y.; Zhang, B.; Wang, J. Q.; Han, E. -H.; Ke, W.; bxz011@imr.ac.cn
	2016
发表期刊	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
ISSN	1452-3981
卷号	11 期号:3 页码:2326-2334
摘要	One to one correspondence of single current transient and its 2D and 3D metastable pit geometry for 304 stainless steel microelectrode (50 mu m in diameter) in 6% FeCl3 solution have been investigated under potentiostatic polarization. Atomic Force Microscope (AFM) has been proved useful to measure the irregular-shaped pit volume without inclusions in it. The pit volume measured by AFM is consistent with that calculated from the charge passed from the corresponding current transient during pit growth. This result demonstrates that the effects of H-2 evolution inside the pit under relatively high potential can be neglected. The growth kinetics of the detected metastable pit obeys a power law, but the exponent n varies with time during the growth stage, which may be associated with the change of the hole diameter in the cover. This result indicates that the metastable pitting growth process is quite complicated and the assumed constant exponent n is unreasonable.
部门归属	[guan, l. ; zhou, y. ; zhang, b. ; wang, j. q. ; han, e. -h. ; ke, w.] chinese acad sci, inst met res, key lab nucl mat & safety assessment, shenyang 110016, peoples r china
关键词	304 Stainless Steel Metastable Pitting Current Transient Afm
资助者	National Natural Science Foundation of China [51171200, 51131008]
收录类别	sci
语种	英语
WOS记录号	WOS:000372195300045
引用统计	被引频次：11[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/321006/75192
专题	中国科学院金属研究所
通讯作者	bxz011@imr.ac.cn
推荐引用方式 GB/T 7714	Guan, L.,Zhou, Y.,Zhang, B.,et al. The Electrochemical and Morphological Characteristics of Single Metastable pit for 304 Stainless Steel under Potentiostatic Polarization[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2016,11(3):2326-2334.
APA	Guan, L..,Zhou, Y..,Zhang, B..,Wang, J. Q..,Han, E. -H..,...&bxz011@imr.ac.cn.(2016).The Electrochemical and Morphological Characteristics of Single Metastable pit for 304 Stainless Steel under Potentiostatic Polarization.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,11(3),2326-2334.
MLA	Guan, L.,et al."The Electrochemical and Morphological Characteristics of Single Metastable pit for 304 Stainless Steel under Potentiostatic Polarization".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 11.3(2016):2326-2334.