Phase field simulation of the interface morphology evolution and its stability during directional solidification of binary alloys

被引：0
作者：
JinCheng Wang
JunJie Li
YuJuan Yang
YuXiang Zhang
GenCang Yang
机构：
[1] Northwestern Polytechnical University,State Key Laboratory of Solidification Processing
来源：
Science in China Series E: Technological Sciences | 2008年 / 51卷
关键词：
directional solidification; phase field method; morphology evolution; stability;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The influences of pulling speed V and temperature gradient G on morphology evolution, concentration distribution, solute trapping and interface stability during directional solidification of binary alloys have been studied with the B-S phase field model. Simulated results reproduced the morphology transitions of deep cell to shallow cell and shallow cell to plane front. The primary cellular spacing, depth of groove and effective solute redistribution coefficient for different V and G are compared. The absolute stability under high pulling speed and high temperature gradient has also been predicted, which is in agreement with the Mullins-Sekerka (M-S) stability theory.
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页码：362 / 370
页数：8
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