Effect of strontium addition on dendrite growth and phase precipitation in AZ91D magnesium alloy

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	Effect of strontium addition on dendrite growth and phase precipitation in AZ91D magnesium alloy
	Zhou Jixue; Wang Bin; Tong Wenhui; Yang Yuansheng
刊名	ACTA METALLURGICA SINICA
	2007-11-01
卷号	43 期号:11 页码:1171-1175
关键词	magnesium alloy AZ91D Sr grain refinement Al4Sr precipitation dendrite growth
ISSN号	0412-1961
通讯作者	Yang Yuansheng(ysyang@imr.ac.cn)
英文摘要	The addition of 0.01%-01%Sr (mass fraction) to AZ91D alloy decreased the grain size obviously and changed the morphology of the primary phase alpha-Mg. With the increase of Sr content the morphology Of beta-Mg17Al12 phase in the alloy was changed and its amount increased. Meanwhile, the needle-like or block-like Al4Sr phase adhering to the beta-Mg17Al12 phase distributes among interdendrities. The enrichment of Sr element at solidification interface front, especially at the tip of alpha-Mg dendrite, restricts the growth of alpha-Mg dendrite and changes the preferential growth of alpha-Mg, which resulted in the grain refinement and the blunting of alpha-Mg dendrite.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000251576700009
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/89652]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yang Yuansheng
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhou Jixue,Wang Bin,Tong Wenhui,et al. Effect of strontium addition on dendrite growth and phase precipitation in AZ91D magnesium alloy[J]. ACTA METALLURGICA SINICA,2007,43(11):1171-1175.
APA	Zhou Jixue,Wang Bin,Tong Wenhui,&Yang Yuansheng.(2007).Effect of strontium addition on dendrite growth and phase precipitation in AZ91D magnesium alloy.ACTA METALLURGICA SINICA,43(11),1171-1175.
MLA	Zhou Jixue,et al."Effect of strontium addition on dendrite growth and phase precipitation in AZ91D magnesium alloy".ACTA METALLURGICA SINICA 43.11(2007):1171-1175.