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	Numerical simulation of microstructure evolution based on a modified CA method
	Yu Jing ; Xu Qingyan ; Cu Kai ; Liu Baicheng
	2010-05-10 ; 2010-05-10
关键词	microstructure numerical simulation single phase alloy dendrite alloy CA method DENDRITIC GROWTH SOLIDIFICATION MODEL ALLOYS Metallurgy & Metallurgical Engineering
中文摘要	Based on the basic transfer process, including heat transfer and solute transfer, and the physics of growth process of crystal grains, the mathematical models for the 3D simulation of microstructure and free dendritic growth of single phase alloy were developed and a new capturing rule was presented. Many factors such as constitutional undercooling, curvature undercooling and grain growth in random preferential growth directions, which had vital influences on the evolution of microstructure, were considered in the model. Simulated results showed that the grain growth in random preferential growth directions can be described by the model reasonably, and the simulated results were coincident with actual phenomena. The simulation results of directional growth of multiple nuclei indicated that the primary dendrite space was independent of initial nuclei number when the growth reached a stable state. The model and the capturing rule are suitable to further research of microstructure evolution of directional solidification.
语种	英语 ; 英语
出版者	SCIENCE CHINA PRESS ; BEIJING ; 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/23895]
专题	清华大学
推荐引用方式 GB/T 7714	Yu Jing,Xu Qingyan,Cu Kai,et al. Numerical simulation of microstructure evolution based on a modified CA method[J],2010, 2010.
APA	Yu Jing,Xu Qingyan,Cu Kai,&Liu Baicheng.(2010).Numerical simulation of microstructure evolution based on a modified CA method..
MLA	Yu Jing,et al."Numerical simulation of microstructure evolution based on a modified CA method".(2010).

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