Pits with coloured halos formed on 1Cr18Ni9Ti stainless steel surface after ennoblement in seawater

IMR OpenIR

	Pits with coloured halos formed on 1Cr18Ni9Ti stainless steel surface after ennoblement in seawater
	W. Wang; X. Zhang; J. Wang
	2009
发表期刊	Materials Science & Engineering C-Biomimetic and Supramolecular Systems
ISSN	0928-4931
卷号	29 期号:3 页码:851-855
摘要	Micropits surrounded by coloured halos were observed under incident-light microscope on 1Cr18Ni9Ti stainless steel surface after "ennoblement" in seawater. Ennoblement has been attributed to biofilm formation on stainless steel surface in seawater. In this study. the environment in biofilm for ennoblement was simulated by adding H(2)O(2) into seawater at concentrations that were reported to detect in marine biofilm [N. Washizu, Y. Katada, T. Kodama, Corros. Sci.46 (2004)1291.]. H(2)O(2) increased the passivity of stainless steel in seawater, but this passivation was not uniform. The probability of pitting corrosion was increased after ennoblement. Equal thickness interference on the deposition film around the pits was believed to be the reason for the coloured fringes. It is conceivable that haloed pits on the stainless steel surface are the characteristic morphological indications for pitting corrosion formed under ennoblement condition in seawater. Examinations on the microbial and structural effects of the biofilm were not included in this study. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[wang, wei; zhang, xia; wang, jia] ocean univ china, coll chem & chem engn, qingdao 266100, peoples r china. [wang, jia] state key lab corros & protect, shenyang 110016, peoples r china.;wang, w (reprint author), ocean univ china, coll chem & chem engn, qingdao 266100, peoples r china;wwei@ouc.edu.cn
关键词	Haloed Pits Pitting Corrosion Stainless Steel Ennoblement Seawater Triangular Current Scan Oxygen Reduction Films Biofilm Growth
URL	查看原文
WOS记录号	WOS:000266520400035
引用统计	被引频次：10[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/321006/32384
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Wang,X. Zhang,J. Wang. Pits with coloured halos formed on 1Cr18Ni9Ti stainless steel surface after ennoblement in seawater[J]. Materials Science & Engineering C-Biomimetic and Supramolecular Systems,2009,29(3):851-855.
APA	W. Wang,X. Zhang,&J. Wang.(2009).Pits with coloured halos formed on 1Cr18Ni9Ti stainless steel surface after ennoblement in seawater.Materials Science & Engineering C-Biomimetic and Supramolecular Systems,29(3),851-855.
MLA	W. Wang,et al."Pits with coloured halos formed on 1Cr18Ni9Ti stainless steel surface after ennoblement in seawater".Materials Science & Engineering C-Biomimetic and Supramolecular Systems 29.3(2009):851-855.