Dimensional analysis applied to pitting corrosion measurements

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	Dimensional analysis applied to pitting corrosion measurements
	Y. Y. Shi; Z. Zhang; F. H. Cao; J. Q. Zhang
	2008
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	53 期号:6 页码:2688-2698
摘要	In this work, two new indices, S-E and S-G are proposed to evaluate pitting corrosion by dimensional analysis of three parameters of PSD, the slope of high frequency linear region (k), the critical frequency (f(c)) and the low-frequency plateau level (W). And then they are employed to analyze the potential electrochemical noise obtained during the corrosion processes of stainless steel 1Cr18Ni9Ti and pure Al, two materials most susceptible to pitting corrosion in NaCl solutions. Meanwhile another two mathematical methods, statistics and wavelet transform techniques, are also carried on the same potential oscillation data to estimate the function (meaning) of these two indices (S-E and S-G) in monitoring corrosion processes. The results suggest that, the index S-E is directly proportional to the rapider potential oscillating and higher fluctuation amplitude and can be used to depict the distribution behavior of electrochemical noise, while the index S-G can be used to depict the slower corrosion processes. (c) 2007 Published by Elsevier Ltd.
部门归属	[shi, y. y.; zhang, z.; cao, f. h.; zhang, j. q.] zhejiang univ, dept chem, hangzhou 310027, peoples r china. [zhang, j. q.] chinese acad sci, state key lab corros & protectci, inst met res, shenyang 110016, peoples r china.;zhang, z (reprint author), zhejiang univ, dept chem, yu quan campus, hangzhou 310027, peoples r china;eaglezzy@zjuem.zju.edu.cn
关键词	Electrochemical Noise Psd Wavelet Transform Dimensional Analysis Pitting Corrosion Electrochemical Noise-analysis District-heating Systems Localized Corrosion Online Corrosion Transform Alloys Steel Iron Fluctuations Impedance
URL	查看原文
WOS记录号	WOS:000253213600004
引用统计	被引频次：26[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/321006/33075
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Y. Shi,Z. Zhang,F. H. Cao,et al. Dimensional analysis applied to pitting corrosion measurements[J]. Electrochimica Acta,2008,53(6):2688-2698.
APA	Y. Y. Shi,Z. Zhang,F. H. Cao,&J. Q. Zhang.(2008).Dimensional analysis applied to pitting corrosion measurements.Electrochimica Acta,53(6),2688-2698.
MLA	Y. Y. Shi,et al."Dimensional analysis applied to pitting corrosion measurements".Electrochimica Acta 53.6(2008):2688-2698.