Morphology modification of Mg(2)Si by Sr addition in Mg-4%Si alloy

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	Morphology modification of Mg(2)Si by Sr addition in Mg-4%Si alloy
	S. Q. Tang; J. X. Zhou; C. W. Tian; Y. S. Yang
	2011
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	21 期号:9 页码:1932-1936
摘要	A modification of Mg(2)Si in the hypereutectic Mg-4%Si alloy (mass fraction) with Sr was investigated. Two types of Mg(2)Si in the alloys were found: polygonal primary Mg(2)Si and Chinese script type eutectic Mg(2)Si. Adding Al-10% Sr master alloy to the Mg-4% Si alloy clearly reduced the average size of primary Mg(2)Si and changed the morphology of eutectic Mg(2)Si from Chinese script type to polyhedral or fine fibre shape. The refinement of primary Mg(2)Si is mainly attributed to the heterogeneous nucleation mechanism induced by the Sr-rich particles. The modification of eutectic Mg(2)Si results from the dissolved Sr, which alters the preferred growth manner of the eutectic.
部门归属	[tang shou-qiu; zhou ji-xue; tian chang-wen; yang yuan-sheng] shandong acad sci, new mat res inst, jinan 250014, peoples r china. [zhou ji-xue; yang yuan-sheng] chinese acad sci, inst met res, shenyang 110016, peoples r china.;zhou, jx (reprint author), shandong acad sci, new mat res inst, jinan 250014, peoples r china;jxzhou_1982@163.com
关键词	Mg-si Alloy Al-sr Alloy Mg(2)Si Modification Refinement Mg-si Alloys Az61-0.7si Magnesium Alloy Refinement Strontium Phase Kbf4 As21
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30701
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. Q. Tang,J. X. Zhou,C. W. Tian,et al. Morphology modification of Mg(2)Si by Sr addition in Mg-4%Si alloy[J]. Transactions of Nonferrous Metals Society of China,2011,21(9):1932-1936.
APA	S. Q. Tang,J. X. Zhou,C. W. Tian,&Y. S. Yang.(2011).Morphology modification of Mg(2)Si by Sr addition in Mg-4%Si alloy.Transactions of Nonferrous Metals Society of China,21(9),1932-1936.
MLA	S. Q. Tang,et al."Morphology modification of Mg(2)Si by Sr addition in Mg-4%Si alloy".Transactions of Nonferrous Metals Society of China 21.9(2011):1932-1936.

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