In situ observation of crack initiation and propagation of the charged magnesium alloy under cyclic wet-dry conditions

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	In situ observation of crack initiation and propagation of the charged magnesium alloy under cyclic wet-dry conditions
	J. Chen ; J. Q. Wang ; E. H. Han ; W. Ke
刊名	Corrosion Science
	2008
卷号	50 期号:8 页码:2338-2341
关键词	Magnesium Environmental scanning electron microscope stress-corrosion cracking mg-al alloy micro-droplets hydrogen scc
ISSN号	0010-938X
中文摘要	The process of crack initiation and propagation of the charged MgAl9Zn1 alloy in an atmosphere of water vapor undercyclic wet-dry conditions was in situ observed using environmental scanning electron microscope (ESEM). The results showed that crack initiated at scratches after 6 wet-dry cycles, indicating that residual stress caused by scratches promoted crack initiation. With the increase of wetting time, the fracture interval of the cracking beta phase enhanced and the crack length increased, implying that hydrogen produced by corrosion reaction participated in the cracking process. (C) 2008 Elsevier Ltd. All rights reserved.
原文出处	://WOS:000260204400027
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/32668]
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	J. Chen,J. Q. Wang,E. H. Han,et al. In situ observation of crack initiation and propagation of the charged magnesium alloy under cyclic wet-dry conditions[J]. Corrosion Science,2008,50(8):2338-2341.
APA	J. Chen,J. Q. Wang,E. H. Han,&W. Ke.(2008).In situ observation of crack initiation and propagation of the charged magnesium alloy under cyclic wet-dry conditions.Corrosion Science,50(8),2338-2341.
MLA	J. Chen,et al."In situ observation of crack initiation and propagation of the charged magnesium alloy under cyclic wet-dry conditions".Corrosion Science 50.8(2008):2338-2341.