Formation of stray grains during directional solidification of a nickel-based superalloy

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	Formation of stray grains during directional solidification of a nickel-based superalloy
	Y. Z. Zhou
	2011
发表期刊	Scripta Materialia
ISSN	1359-6462
卷号	65 期号:4 页码:281-284
摘要	Superalloy CMSX-4 is directionally solidified and initiated by bicrystal seeds. It has been found that diverging boundaries are the most favorable location for stray grain formation. The phenomenon cannot be attributed to nucleation of crystals. A reasonable mechanism is the bending or detachment of side arms during extension of secondary arms and the development of tertiary branches at the diverging boundaries. Solute interaction of the neighboring dendrites increases the likelihood of bending or detachment and thus leads to an enhanced frequency of stray grains. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	chinese acad sci, inst met res, shenyang 110016, peoples r china.;zhou, yz (reprint author), chinese acad sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;yzzhou@imr.ac.cn
关键词	Directional Solidification Nickel Alloys Stray Grains Dendritic Growth Single-crystal Superalloys Growth Orientation Prediction Mechanism
URL	查看原文
WOS记录号	WOS:000292445600002
引用统计	被引频次：85[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30990
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Z. Zhou. Formation of stray grains during directional solidification of a nickel-based superalloy[J]. Scripta Materialia,2011,65(4):281-284.
APA	Y. Z. Zhou.(2011).Formation of stray grains during directional solidification of a nickel-based superalloy.Scripta Materialia,65(4),281-284.
MLA	Y. Z. Zhou."Formation of stray grains during directional solidification of a nickel-based superalloy".Scripta Materialia 65.4(2011):281-284.