Corrosion behavior of AZ91D magnesium alloy in city atmosphere

IMR OpenIR

	Corrosion behavior of AZ91D magnesium alloy in city atmosphere
	Lin, C ; Li, XG ; Li, M ; Wang, FP
通讯作者	Lin, C(lincwi@sohu.com)
	2004-02-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	40 期号:2 页码:191-196
摘要	The surface morphology of corrosion layer, corrosion products and structure of rust layer for AZ91D magnesium alloy in natural city atmosphere were studied by SEM and XRD. The results show that Mg(OH)(2) layer forms at the initial corrosion period, then film thickens and cracks appear with continued corrosion under cyclic wet/dry conditions, in the end these cracks develop to reticulate structure. The water vapour is easily condensed and the corrosives gases, salt particles are easily absorbed in the cracks. Meanwhile. the cracks provide the diffusion paths for oxygen and other corrosion pollutants into matrix, which results in severe local corrosion. The major corrosion products are Mg(OH)(2), Al(OH)(3), Mg2CO3(OH)(2)(.)3H(2)O and Mg-2(OH)(3)Cl(.)4H(2)O, which plays a partial role in protecting the matrix, therefore slowing down the average corrosion rate of magnesium alloy in the latter periods.
关键词	city atmosphere magnesium alloy corrosion behavior
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000220264700015
出版者	SCIENCE CHINA PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/81411
通讯作者	Lin, C
作者单位	1.Univ Sci & Technol Beijing, Ctr Corros & Protect, Key Lab Corros Eros & Surface Technol Beijing, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Lin, C,Li, XG,Li, M,et al. Corrosion behavior of AZ91D magnesium alloy in city atmosphere[J]. ACTA METALLURGICA SINICA,2004,40(2):191-196.
APA	Lin, C,Li, XG,Li, M,&Wang, FP.(2004).Corrosion behavior of AZ91D magnesium alloy in city atmosphere.ACTA METALLURGICA SINICA,40(2),191-196.
MLA	Lin, C,et al."Corrosion behavior of AZ91D magnesium alloy in city atmosphere".ACTA METALLURGICA SINICA 40.2(2004):191-196.