A stochastic analysis of the effect of hydrostatic pressure on the pit corrosion of Fe-20Cr alloy

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	A stochastic analysis of the effect of hydrostatic pressure on the pit corrosion of Fe-20Cr alloy
	T. Zhang; Y. G. Yang; Y. W. Shao; G. Z. Meng; F. H. Wang
	2009
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	54 期号:15 页码:3915-3922
摘要	The effect of hydrostatic pressure on the pit corrosion behavior of Fe-20Cr alloy was investigated in 3.5% NaCl solution by means of potentiodynamic polarization and potentiostatic technology, and the experiment data was analyzed based on stochastic theory. With the increase of hydrostatic pressure, the pit corrosion resistance of Fe-20Cr alloy was deteriorated, which was distinguished by the decrease of critical pit potential (E(cirt)) and the increase of passive current density. The results also demonstrated that there exist two effects of hydrostatic pressure on the corrosion behavior of Fe-20Cr alloy: (1) the pit generation rate was evidently increased compared to that under lower hydrostatic pressure, and the metastable pits become faster and larger. However, it seemed that pit generation mechanism shows no hydrostatic pressure dependence; (2) the probability of pit growth increased with the increase of hydrostatic pressure, which implied that the metastable pit on Fe-20Cr alloy exhibited higher probability to become larger pit cavity during shorter time interval than that under lower hydrostatic pressure. (C) 2009 Elsevier Ltd. All rights reserved.
部门归属	[zhang, tao; yang, yange; shao, yawei; meng, guozhe; wang, fuhui] harbin engn univ, coll mat sci & chem engn, corros & protect lab,minist educ, key lab superlight mat & surface technol, harbin 150001, peoples r china. [zhang, tao; shao, yawei; meng, guozhe; wang, fuhui] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;zhang, t (reprint author), harbin engn univ, coll mat sci & chem engn, corros & protect lab,minist educ, key lab superlight mat & surface technol, nantong st 145, harbin 150001, peoples r china;zhangtao@hrbeu.edu.cn
关键词	Hydrostatic Pressure Corrosion Stochastic Analysis Fe-20cr Alloy Deep Ocean Slightly Alkaline-solutions Water Cathodic Protection Localized Corrosion Pitting Corrosion Anodized Titanium Stainless-steel Sea-water Aluminum Generation Film
URL	查看原文
WOS记录号	WOS:000266197000010
引用统计	被引频次：84[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/321006/32567
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	T. Zhang,Y. G. Yang,Y. W. Shao,et al. A stochastic analysis of the effect of hydrostatic pressure on the pit corrosion of Fe-20Cr alloy[J]. Electrochimica Acta,2009,54(15):3915-3922.
APA	T. Zhang,Y. G. Yang,Y. W. Shao,G. Z. Meng,&F. H. Wang.(2009).A stochastic analysis of the effect of hydrostatic pressure on the pit corrosion of Fe-20Cr alloy.Electrochimica Acta,54(15),3915-3922.
MLA	T. Zhang,et al."A stochastic analysis of the effect of hydrostatic pressure on the pit corrosion of Fe-20Cr alloy".Electrochimica Acta 54.15(2009):3915-3922.