Roles of beta phase in the corrosion process of AZ91D magnesium alloy

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	Roles of beta phase in the corrosion process of AZ91D magnesium alloy
	T. Zhang; Y. Li; F. H. Wang
	2006
发表期刊	Corrosion Science
ISSN	0010-938X
卷号	48 期号:5 页码:1249-1264
摘要	For better understanding of the roles of beta phase in the corrosion processes of AZ91D alloy, corrosion behavior of a cast (alpha + beta phase) and a homogenized (beta phase) AZ91D alloy was investigated in NaCl aqueous solution by gas collection and electrochemical measurements. According to the hydrogen evolution properties during corrosion, two different types of corrosion tend might be differentiated. For type I, hydrogen diffused into alloy, which evoked the decreasing of hydrogen evolution rate (HER) and the weakening of negative difference effect (NDE). For type II, in the corrosion process, hydrogen in the alloys diffused into the product film (P-type semiconductor), which suggested that hydrogen entering the film would be ionized. The generated electrons during ionization decreased the concentration of vacancies in the valence band of the product films, indicating an improvement of corrosion resistance of AZ91D alloy. (c) 2005 Elsevier Ltd. All rights reserved.
部门归属	chinese acad sci, met res inst, state key lab corros & protect, shenyang 110016, peoples r china.;li, y (reprint author), chinese acad sci, met res inst, state key lab corros & protect, wencui rd 62, shenyang 110016, peoples r china;liying@imr.ac.cn
关键词	Magnesium Alloy Beta Phase Effect Of Hydrogen Corrosion Eis 310 Stainless-steel Anodic-dissolution Hydrogen Behavior Chloride Film Mg
URL	查看原文
WOS记录号	WOS:000237624500014
引用统计	被引频次：136[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/321006/34708
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	T. Zhang,Y. Li,F. H. Wang. Roles of beta phase in the corrosion process of AZ91D magnesium alloy[J]. Corrosion Science,2006,48(5):1249-1264.
APA	T. Zhang,Y. Li,&F. H. Wang.(2006).Roles of beta phase in the corrosion process of AZ91D magnesium alloy.Corrosion Science,48(5),1249-1264.
MLA	T. Zhang,et al."Roles of beta phase in the corrosion process of AZ91D magnesium alloy".Corrosion Science 48.5(2006):1249-1264.