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
刊名	Electrochimica Acta
	2008
卷号	53 期号:6 页码:2688-2698
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
ISSN号	0013-4686
中文摘要	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.
原文出处	://WOS:000253213600004
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/33075]
专题	金属研究所_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.