Phase field study of concurrent nucleation and growth in a diffusion-controlled solid-state phase transformation

被引:1
作者
Wang, Gang [1 ]
Zeng, Dechang [1 ]
Liu, Zhongwu [1 ]
机构
[1] S China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China
来源
MECHATRONICS AND INTELLIGENT MATERIALS II, PTS 1-6 | 2012年 / 490-495卷
关键词
Phase field modeling; Nucleation; Diffusion; Phase transformation; MODELS;
D O I
10.4028/www.scientific.net/AMR.490-495.1140
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The concurrent nucleation and growth in a diffusion-controlled phase transformation is studied using the quantitative phase field method, and the transformation kinetics is obtained for a model alloy. The simulation results show that the simultaneous nucleation and growth of new phase can be described very well in the phase field model, and that the phase transformation is governed by the diffusion of solute atoms. The competition between nucleation and coarsening is also observed. The phase transformation kinetics is found to obey the JMAK equation.
引用
收藏
页码:1140 / 1144
页数:5
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