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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
Source PublicationINTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
ISSN1452-3981
Volume11Issue:3Pages:2326-2334
AbstractOne 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.
description.department[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
Keyword304 Stainless Steel Metastable Pitting Current Transient Afm
Funding OrganizationNational Natural Science Foundation of China [51171200, 51131008]
Indexed Bysci
Language英语
WOS IDWOS:000372195300045
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75192
Collection中国科学院金属研究所
Corresponding Authorbxz011@imr.ac.cn
Recommended Citation
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.
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