Electrochemical corrosion behavior of nanocrystallized bulk 304 stainless steel

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	Electrochemical corrosion behavior of nanocrystallized bulk 304 stainless steel
	N. Li ; Y. Li ; S. Wang ; F. H. Wang
刊名	Electrochimica Acta
	2006
卷号	52 期号:3 页码:760-765
关键词	nanocrystallized bulk 304ss passive film Mott-Schottky analysis donor density donor diffusion coefficient anodic passive films 304l stainless-steel point-defect model aisi 304-stainless-steel different temperatures electronic-structure surface texture copper h2so4
ISSN号	0013-4686
中文摘要	By employing Mott-Schottky analysis in conjunction with the point defect model (PDM), we compared donor density and donor diffusion coefficients in the passive films formed on the surface of nanocrystallized bulk 304 stainless steel (NB304ss) and cast 304 stainless steel (304ss) in 0.05 mol/L H2SO4 + 0.25 mol/L Na2SO4 solution. The donor density at the metal/film interface of the NB304ss was lower than that at the metal film interface of the cast 304ss. Based on the Mott-Schottky analysis, an exponential relationship between donor density and formation potentials of the passive films on the NB304ss and the cast 304ss was built up. The results showed that the donor diffusion coefficients in the passive film formed on the surface of NB304ss was lower than that in the cast 304ss. The lower donor density and the lower diffusion coefficient restrained the electrochemical reaction in the passive film and improved the stability of the passive film. That is the reason why the passive film formed on the NB304ss was more protective. (c) 2006 Elsevier Ltd. All rights reserved.
原文出处	://WOS:000242616100002
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/34308]
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	N. Li,Y. Li,S. Wang,et al. Electrochemical corrosion behavior of nanocrystallized bulk 304 stainless steel[J]. Electrochimica Acta,2006,52(3):760-765.
APA	N. Li,Y. Li,S. Wang,&F. H. Wang.(2006).Electrochemical corrosion behavior of nanocrystallized bulk 304 stainless steel.Electrochimica Acta,52(3),760-765.
MLA	N. Li,et al."Electrochemical corrosion behavior of nanocrystallized bulk 304 stainless steel".Electrochimica Acta 52.3(2006):760-765.