Study of the effects of hydrogen on the pitting processes of X70 carbon steel with SECM

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	Study of the effects of hydrogen on the pitting processes of X70 carbon steel with SECM
	Y. A. Yuan; L. A. Li; C. Wang; Y. Y. Zhu
	2010
发表期刊	Electrochemistry Communications
ISSN	1388-2481
卷号	12 期号:12 页码:1804-1807
摘要	The effects of hydrogen on the pitting processes of X70 carbon steel in neutral chloride ions containing solution are investigated by using the scanning electrochemical microscope (SECM) technique. The tip of the SECM monitors the Fe(2+) ions produced by the specimen during its anodic dissolution processes, thus the initiation and the propagation of the pitting processes can be observed. Pitting is much more easily observed after the specimen has been pre-charged with hydrogen, for the oxidation of the hydrogen in the X70 decreases the pH value at the X70/solution interface, which retards the formation of an oxide film and subsequently promotes the pitting processes. The observed behaviour is further verified by the decrease of the solution's pH. (C) 2010 Elsevier B.V. All rights reserved.
部门归属	[yuan, yuan; li, liang; wang, chao; zhu, yongyan] xuzhou normal univ, dept chem, xuzhou 221116, peoples r china. [wang, chao] state key lab corros & protect, shenyang 110016, peoples r china.;wang, c (reprint author), xuzhou normal univ, dept chem, xuzhou 221116, peoples r china;wangc@xznu.edu.cn
关键词	Pitting X70 Carbon Steel Chloride Ions H-charged Secm Scanning Electrochemical Microscopy Stainless-steel Passive Films In-situ Corrosion 304-stainless-steel Iron Dissolution Mechanism Alloys
URL	查看原文
WOS记录号	WOS:000285904700035
引用统计	被引频次：43[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/321006/31669
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. A. Yuan,L. A. Li,C. Wang,et al. Study of the effects of hydrogen on the pitting processes of X70 carbon steel with SECM[J]. Electrochemistry Communications,2010,12(12):1804-1807.
APA	Y. A. Yuan,L. A. Li,C. Wang,&Y. Y. Zhu.(2010).Study of the effects of hydrogen on the pitting processes of X70 carbon steel with SECM.Electrochemistry Communications,12(12),1804-1807.
MLA	Y. A. Yuan,et al."Study of the effects of hydrogen on the pitting processes of X70 carbon steel with SECM".Electrochemistry Communications 12.12(2010):1804-1807.