PHASE FIELD SIMULATION OF EQUIAXED DENDRITIC GROWTH DURING NON-ISOTHERMAL POLYCRYSTALLINE SOLIDIFICATION

被引：0

作者：

Li, J. J. ^{[1
]}

Wang, J. C. ^{[1
]}

Wu, L. Y. ^{[1
]}

Yang, G. C. ^{[1
]}

机构：

[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2010年 / 24卷 / 15-16期

关键词：

Solidification; dendritic growth; nucleation; BINARY ALLOY; DIRECTIONAL SOLIDIFICATION; MODEL; NUCLEATION; TRANSITION;

D O I：

10.1142/S0217979210065593

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The non-isothermal polycrystalline solidification of a binary alloy is simulated by employing a phase field model which takes into account the heat transition and the random crystallographic orientation. The stochastic nucleation is taken into account in the simulation through the Poisson seeding algorithm and a kinetic calculation for binary melts based on the classical nucleation theory. Different microstructures are obtained under various cooling conditions. It is found that the grain structure becomes finer with increasing the cooling rate, which agrees with experimental result.

引用

页码：2762 / 2767

页数：6

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