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Numerical simulation of dendrite growth and microsegregation formation of binary alloys during solidification process

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Li Qiang 1   Guo Qiaoyi 2   Li Rongde 1  
文摘 The dendrite growth and solute microsegregation of Fe-C binary alloy are simulated during solidification process by using cellular automaton method. In the model the solid fraction is deduced from the relationship among the temperature, solute concentration and curvature of the solid/liquid interface unit, which can be expressed as a quadric equation, instead of assuming the interface position and calculating the solid fraction from the interface velocity. Then by using this model a dendrite with 0 and 45 degree of preferential growth direction are simulated respectively. Furthermore, a solidification microstructure and solute microsegregation are simulated by this method. Finally, different Gibbs- Thomson coefficient and liquid solute diffusing coefficient are adopted to investigate their influences on the morphology of dendrite.
来源 Chinese Physics ,2006,15(4):778-791 【核心库】
地址

1. School of Material Science and Engineering, Shenyang University of Technology, Shenyang, 110023  

2. Shenyang Ligong University, Shenyang, 110168

语种 英文
文献类型 研究性论文
ISSN 1009-1963
学科 晶体学
基金 辽宁省教育厅项目
文献收藏号 CSCD:2619638

参考文献 共 19 共1页

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引证文献 4 篇

1 Pan Xiu-Hong Solute distribution in KNbO_3 melt-solution and its effect on dendrite growth during rapid solidification Chinese Physics. B,2009,18(2):699-703
被引 2 次

2 彭曙 柱状晶向等轴晶转变的数值模拟研究进展 材料导报,2008,22(4):1-4,9
被引 3 次

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