Effect of pitting nucleation on critical pitting temperature of 316L stainless steel by nitric acid passivation

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	Effect of pitting nucleation on critical pitting temperature of 316L stainless steel by nitric acid passivation
	J.; Zhang Liu, T.; Meng, G. Z.; Shao, Y. W.; Wang, F. H.
	2015
发表期刊	Corrosion Science
ISSN	0010-938X
卷号	91 页码:232-244
摘要	The effect of pitting nucleation on critical pitting temperature (CPT) of 316L stainless steel is investigated by electrochemical measurements, morphology observation and XPS analysis. CPT increases dramatically after being passivated by nitric acid, which is mainly attributed to inclusions dissolution and Cr2O3 enrichment in passive film. However, the thickness of passive film is less influential. Pitting nucleation is suppressed through passivation, which leads to the increase of pitting nucleation temperature. Consequently, critical current density (GO shifts to higher temperatures, indicating the enhancement of CPT. In other words, CPT is influenced by both pitting growth chemistry and pitting nucleation. (C) 2014 Elsevier Ltd. All rights reserved.
部门归属	[liu, jing ; zhang, tao ; meng, guozhe ; shao, yawei ; wang, fuhui] harbin engn univ, key lab superlight mat & surface technol, corros & protect lab, minist educ, harbin 150001, peoples r china. [zhang, tao ; meng, guozhe ; shao, yawei ; wang, fuhui] chinese acad sci, inst met res, lab corros & protection, shenyang 110016, peoples r china. ; zhang, t (reprint author), harbin engn univ, key lab superlight mat & surface technol, corros & protect lab, minist educ, nantong st 145, harbin 150001, peoples r china. ; zhangtao@hrbeu.edu.cn
关键词	316l Stainless Steel Sem Xps Pitting Corrosion Surface-roughness Chloride Solutions Corrosion Pits Resistance Ion Inclusions Dependence Initiation Inhibition
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73862
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J.,Zhang Liu, T.,Meng, G. Z.,et al. Effect of pitting nucleation on critical pitting temperature of 316L stainless steel by nitric acid passivation[J]. Corrosion Science,2015,91:232-244.
APA	J.,Zhang Liu, T.,Meng, G. Z.,Shao, Y. W.,&Wang, F. H..(2015).Effect of pitting nucleation on critical pitting temperature of 316L stainless steel by nitric acid passivation.Corrosion Science,91,232-244.
MLA	J.,et al."Effect of pitting nucleation on critical pitting temperature of 316L stainless steel by nitric acid passivation".Corrosion Science 91(2015):232-244.