Effects of dust and salt particles on the formation and spreading of micro-droplets on AZ91 magnesium alloy

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	Effects of dust and salt particles on the formation and spreading of micro-droplets on AZ91 magnesium alloy
	J. Chen ; J. Q. Wang ; E. H. Han ; W. Ke
刊名	Corrosion Science
	2008
卷号	50 期号:5 页码:1449-1459
关键词	AZ91 magnesium alloy in situ environmental scanning electron microscope in-situ observation wet-dry conditions atmospheric corrosion
ISSN号	0010-938X
中文摘要	The effects of dust and salt particles on the formation and spreading of micro-droplets on as-cast AZ91 magnesium alloy in an atmosphere of water vapor were investigated using an environmental scanning electron microscope (ESEM). The in situ observations results indicated that both dust particle and AlMn phase stimulated the formation and spreading of micro-droplets, but had few influences on the spreading of water film; salt particle accelerated the formation and spreading of micro-droplets, and the spreading of water film. The generalized form for the spreading kinetics of micro-droplets and water film was D = At-n with D representing the diameter for micro-droplet and the spreading distance for water film, A the formation ability constant of micro-droplet, n the spreading exponent (0 < n < 0.5 for micro-droplet, n > 0.5 for water film). Micro-droplet preferentially formed at the position with a high A value, and the driving force of the spreading of micro-droplets and water film was concentration gradient. (c) 2008 Elsevier Ltd. All rights reserved.
原文出处	://WOS:000256184800029
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/32669]
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. Effects of dust and salt particles on the formation and spreading of micro-droplets on AZ91 magnesium alloy[J]. Corrosion Science,2008,50(5):1449-1459.
APA	J. Chen,J. Q. Wang,E. H. Han,&W. Ke.(2008).Effects of dust and salt particles on the formation and spreading of micro-droplets on AZ91 magnesium alloy.Corrosion Science,50(5),1449-1459.
MLA	J. Chen,et al."Effects of dust and salt particles on the formation and spreading of micro-droplets on AZ91 magnesium alloy".Corrosion Science 50.5(2008):1449-1459.