Tailoring of Dendritic Microstructure in Solidification Processing by Crucible Vibration / Rotation

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	Tailoring of Dendritic Microstructure in Solidification Processing by Crucible Vibration / Rotation
	Billia B; Nguyen Thi H; Reinhart G; Dabo Y; Zhou BH(周炳红); Liu QS(刘秋生); Lyubimova T; Roux B; Lan CW
刊名	Microgravity Science and Technology
	2005
卷号	16 期号:1-4 页码:15-19
ISSN号	0938-0108
合作状况	国际
中文摘要	Directional solidification of alloys, which allows the independent control of growth parameters (pulling velocity, temperature gradient), is an experimental method of choice for the investigation of many fundamental problems (e.g. microstructure formation and selection, segregation of chemical species) encountered in the processing of structural materials. Upward directional solidification is carried out on hypoeutectic Al-Ni alloys, under natural and controlled fluid-flow conditions. First, the influence of natural convection on solidified dendritic microstructure is analyzed as a function of growth parameters. Then, directional solidification experiments with axial vibration are performed. It results that crucible vibration can be used to either damp or control fluid flow in the melt, and thus tailor columnar or “equiaxed” dendritic mush. Advanced modeling and numerical simulation are essential to clarify and quantify the various physical effects. Microgravity benchmark experiments under diffusion transport, and possibly with crucible rotation, are foreseen using the Materials Science Laboratory of ESA on ISS.
类目[WOS]	Engineering, Aerospace ; Thermodynamics ; Mechanics
研究领域[WOS]	Engineering ; Thermodynamics ; Mechanics
收录类别	SCI
语种	英语
WOS记录号	WOS:000207519500003
公开日期	2009-04-24
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/13723]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Billia B,Nguyen Thi H,Reinhart G,et al. Tailoring of Dendritic Microstructure in Solidification Processing by Crucible Vibration / Rotation[J]. Microgravity Science and Technology,2005,16(1-4):15-19.
APA	Billia B.,Nguyen Thi H.,Reinhart G.,Dabo Y.,周炳红.,...&Lan CW.(2005).Tailoring of Dendritic Microstructure in Solidification Processing by Crucible Vibration / Rotation.Microgravity Science and Technology,16(1-4),15-19.
MLA	Billia B,et al."Tailoring of Dendritic Microstructure in Solidification Processing by Crucible Vibration / Rotation".Microgravity Science and Technology 16.1-4(2005):15-19.