| 三元合金等温凝固过程的相场法模拟 |
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| 引用本文： | 王智平,冯力,路阳,朱昌盛,肖荣振.三元合金等温凝固过程的相场法模拟[J].兰州理工大学学报,2007,33(4):1-4. |
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| 作者姓名： | 王智平 冯力 路阳 朱昌盛 肖荣振 |
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| 作者单位： | 兰州理工大学,材料科学与工程学院,甘肃,兰州,730050;兰州理工大学,甘肃省有色金属及复合材料工程技术研究中心,甘肃,兰州,730050;兰州理工大学,材料科学与工程学院,甘肃,兰州,730050 |
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| 摘 要： | 采用相场与浓度场耦合的相场法,以Fe-C-P合金为例,模拟三元合金等温凝固的生长过程.结果表明,在一定的温度区间里,生长速度是随着温度的降低而减小的,随着温度的降低,二次枝晶生长越发达.模拟结果还表明,二次枝晶之间有大量的溶质富集;各向异性系数的改变会影响二次枝晶的形貌.
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| 关 键 词： | 相场法 三元合金 等温凝固 模拟 |
| 文章编号： | 1673-5196（2007）04-0001-04 |
| 修稿时间： | 2006-11-17 |
Simulation of isothermal solidification of ternary alloy with phase-field model |
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| WANG Zhi-ping,FENG Li,LU Yang,ZHU Chang-sheng,XIAO Rong-zhen.Simulation of isothermal solidification of ternary alloy with phase-field model[J].Journal of Lanzhou University of Technology,2007,33(4):1-4. |
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| Authors: | WANG Zhi-ping FENG Li LU Yang ZHU Chang-sheng XIAO Rong-zhen |
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| Institution: | 1. College of Materials Science and Engineering, Lanzhou Univ. of Tecb. , rous and Composite Materials, Lanzhou Univ. of Tecb. , Lanzhou 730050, Lanzhou 730050, China; 2. Research Centre of Gansu Non-fer rous and Composite Materials, Lanzhou Univ. of Teeh. , Lanzhou 730050, China |
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| Abstract: | The phase-field model in which the concentration-field and phase-field were coupled was applied to simulate microstructural evolution of isothermal dendritic growth of Fe-C-P ternary alloy.The calculation result indicated that,in a definite temperature range,the growth speed decreased with temperature reducing,and,instead,the growth of side-branches became flourishing.The result also indicated that,among the side-branches,the solute concentrated;the anisotropy coefficient could have effect on the morphology of dendrite growth. |
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| Keywords: | phase-field method ternary alloy isothermal solidification simulation |
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