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	3D stochastic modeling of grain structure for aluminum alloy casting
	Qingyan Xu ; Weiming Feng ; Baicheng Liu
	2010-05-10 ; 2010-05-10
关键词	Theoretical or Mathematical/ aluminium alloys casting cellular automata copper alloys dendritic structure grain growth nucleation numerical analysis solidification/ 3D stochastic modeling equiaxed dendritic grain structure aluminum alloy casting solidification time dependent calculations solute redistribution dendritic tip curvature growth anisotropy continuous cell nucleation temperature field calculation grain shape model cellular automation grain growth model grain capture AlCu/ A6185 Modelling and computer simulation of solid structure A6480G Microstructure A8130F Solidification A6470D Solid-liquid transitions/ AlCu/bin Al/bin Cu/bin
中文摘要	A 3D stochastic modeling was carried out to simulate the dendritic-grains during solidification of aluminum alloys, including time-dependent calculations for temperature field, solute redistribution in liquid, curvature of the dendritic tip, and growth anisotropy. The nucleation process was treated by continuous nucleation. A 3D simplified grain shape model was established to represent the equiaxed dendritic grain. Based on the Cellular Automation method, a grain growth model was proposed to capture the neighbor cells of the nucleated cell. During growing, each grain continues to capture the nearest neighbor cells to form the final shape. When a neighbor cell was captured by other grains, the grain growth along this direction would be stopped. Three-dimensional calculations were performed to simulate the evolution of dendritic grain. In order to verify the modeling results, the predictions were compared with the observation on samples cast in the sand mold and the metal mold.
语种	英语 ; 英语
出版者	Editorial Board J. Mater. Sci. & Technol ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/24074]
专题	清华大学
推荐引用方式 GB/T 7714	Qingyan Xu,Weiming Feng,Baicheng Liu. 3D stochastic modeling of grain structure for aluminum alloy casting[J],2010, 2010.
APA	Qingyan Xu,Weiming Feng,&Baicheng Liu.(2010).3D stochastic modeling of grain structure for aluminum alloy casting..
MLA	Qingyan Xu,et al."3D stochastic modeling of grain structure for aluminum alloy casting".(2010).

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