| Phase——field model of isothermal solidification withmultiple grains growth |
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| 引用本文： | 冯力,王智平,朱昌盛,路阳.Phase——field model of isothermal solidification withmultiple grains growth[J].中国物理 B,2009,18(5):1985-1990. |
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| 作者姓名： | 冯力 王智平 朱昌盛 路阳 |
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| 作者单位： | (1)College of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China; (2)College of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China;State Key Laboratory of Gansu Advanced Nonferrous Metal Material, Lanzhou University of Technology, Lanzhou 730050, China |
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| 基金项目： | Project supported by the National
Natural Science Foundation of China (Grant No 50804019) and
Foundation for Doctoral Program of the Ministry of Education of
China (Grant No 20070731001). |
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| 摘 要： | This paper develops a new phase--field model for equiaxed dendrite
growth of multiple grains in multicomponent alloys based on the
Ginzberg--Landau theory and phase--field model of a single grain.
Taking Al--Cu and Al--Cu--Mg alloys for example, it couples the
concentration field and simulates the dendrite growth process of
multiple grains during isothermal solidification. The result of
the simulation shows dendrite competitive growth of multiple grains,
and is reapplied to the process of dendrite growth in practical
solidification.
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| 关 键 词： | phase--field multiple grains multicomponent alloys equiaxed dendrites |
| 收稿时间： | 2008-10-08 |
Phase--field model of isothermal solidification withmultiple grains growth |
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| Feng Li,Wang Zhi-Ping,Zhu Chang-Sheng and Lu Yang.Phase--field model of isothermal solidification withmultiple grains growth[J].Chinese Physics B,2009,18(5):1985-1990. |
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| Authors: | Feng Li Wang Zhi-Ping Zhu Chang-Sheng and Lu Yang |
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| Institution: | College of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China; State Key Laboratory of Gansu Advanced Nonferrous Metal Material, Lanzhou University of Technology, Lanzhou 730050, China |
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| Abstract: | This paper develops a new phase--field model for equiaxed dendrite
growth of multiple grains in multicomponent alloys based on the
Ginzberg--Landau theory and phase--field model of a single grain.
Taking Al--Cu and Al--Cu--Mg alloys for example, it couples the
concentration field and simulates the dendrite growth process of
multiple grains during isothermal solidification. The result of
the simulation shows dendrite competitive growth of multiple grains,
and is reapplied to the process of dendrite growth in practical
solidification. |
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| Keywords: | phase--field multiple grains multicomponent alloys equiaxed dendrites |
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