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金属学报  2005 

用CA方法模拟过冷熔体中自由树枝晶的生长

, PP. 799-803

Keywords: 胞元自动机,枝晶生长,过冷熔体

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Abstract:

基于溶质扩散和界面能的作用,建立了过冷熔体中自由树枝晶的生长模型,考虑了成分过冷、曲率过冷和界面能各向异性.用胞元自动机(CA)方法模拟了枝晶生长、界面扰动以及分枝的竞争演化.对枝晶尖端生长速度和过冷度的关系进行了模拟计算,并与L--G--K理论模型进行了定量的比较.

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