Influence of Forced Convection on Columnar Microstructure During Directional Solidification of Al-Ni Alloys

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	Influence of Forced Convection on Columnar Microstructure During Directional Solidification of Al-Ni Alloys
	Thi HN; Zhou BH; Liu QS(刘秋生)
刊名	Solidification and Gravity IV Materials Science Forum
	2006
卷号	508 页码:181-186
ISSN号	0255-5476
中文摘要	This paper presents a summary of cellular and dendritic morphologies resulting from the upward directional solidification of Al - Ni alloys in a cylindrical crucible. We analysed the coupling of solid-liquid interface morphology with natural and forced convection. The influence of natural convection was first analyzed as a function of growth parameters (solute concentration, growth rate and thermal gradient). In a second step, the influence of axial vibrations on solidification microstructure was investigated by varying vibration parameters (amplitude and frequency). Experimental results were compared to preliminary numerical simulations and a good agreement is found for natural convection. In this study, the critical role of the mushy zone in the interaction between fluid flow and solidification microstructure is pointed out.
学科主题	力学
类目[WOS]	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]	Materials Science ; Metallurgy & Metallurgical Engineering
收录类别	SCI
语种	英语
WOS记录号	WOS:000236480800027
公开日期	2007-06-15 ; 2007-12-05 ; 2009-06-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/17211]
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	Thi HN,Zhou BH,Liu QS. Influence of Forced Convection on Columnar Microstructure During Directional Solidification of Al-Ni Alloys[J]. Solidification and Gravity IV Materials Science Forum,2006,508:181-186.
APA	Thi HN,Zhou BH,&刘秋生.(2006).Influence of Forced Convection on Columnar Microstructure During Directional Solidification of Al-Ni Alloys.Solidification and Gravity IV Materials Science Forum,508,181-186.
MLA	Thi HN,et al."Influence of Forced Convection on Columnar Microstructure During Directional Solidification of Al-Ni Alloys".Solidification and Gravity IV Materials Science Forum 508(2006):181-186.