A three-dimensional cellular automaton model for dendritic growth in multi-component alloys

IMR OpenIR

	A three-dimensional cellular automaton model for dendritic growth in multi-component alloys
	X. F. Zhang; J. Z. Zhao; H. X. Jiang; M. F. Zhu
	2012
发表期刊	Acta Materialia
ISSN	1359-6454
卷号	60 期号:5 页码:2249-2257
摘要	A three-dimensional (3-D) cellular automaton model for dendritic growth in multi-component alloys is developed. The velocity of advance of the solid/liquid (S/L) interface is calculated using the solute conservation relationship at the S/L interface. The effect of interactions between the alloying elements on the diffusion coefficient of solutes in the solid and liquid phases are considered. The model is first validated by comparing with the theoretical predictions for binary and ternary alloys, and then applied to simulate the solidification process of Al-Cu-Mg alloys by a coupling of thermodynamic and kinetic calculations. The numerical results obtained show both the free dendrite growth process as well as the directional solidification process. The calculated secondary dendrite arm spacing in the directionally solidified Al-Cu-Mg alloy is in good agreement with the experimental results. The effect of interactions between :he various alloying elements on dendritic growth is discussed. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	[zhang, xianfei; zhao, jiuzhou; jiang, hongxiang] cas, inst met res, shenyang 110016, peoples r china. [zhu, mingfang] southeast univ, sch mat sci & engn, jiangsu key lab adv metall mat, nanjing 211189, jiangsu, peoples r china.;zhang, xf (reprint author), cas, inst met res, shenyang 110016, peoples r china.;zhangxianfei@imr.ac.cn; jzzhao@imr.ac.cn
关键词	Three-dimensional Cellular Automaton Multi-component Solidification Thermodynamics Dendrite Growth Phase-field Simulation Solidification Microstructures Mg Alloys Prediction Mobility Microsegregation Diffusion Patterns Elements
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60461
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. F. Zhang,J. Z. Zhao,H. X. Jiang,et al. A three-dimensional cellular automaton model for dendritic growth in multi-component alloys[J]. Acta Materialia,2012,60(5):2249-2257.
APA	X. F. Zhang,J. Z. Zhao,H. X. Jiang,&M. F. Zhu.(2012).A three-dimensional cellular automaton model for dendritic growth in multi-component alloys.Acta Materialia,60(5),2249-2257.
MLA	X. F. Zhang,et al."A three-dimensional cellular automaton model for dendritic growth in multi-component alloys".Acta Materialia 60.5(2012):2249-2257.