Phase-field modeling for 3D grain growth based on a grain boundary energy database

被引:70
作者
Kim, Hyun-Kyu [1 ]
Kim, Seong Gyoon [2 ]
Dong, Weiping [1 ]
Steinbach, Ingo [3 ]
Lee, Byeong-Joo [1 ]
机构
[1] Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, Pohang 790784, South Korea
[2] Kunsan Natl Univ, Dept Mat Sci & Engn, Kunsan 573701, South Korea
[3] Ruhr Univ Bochum, Interdisciplinary Ctr Adv Mat Simulat, D-44801 Bochum, Germany
关键词
phase-field model; grain growth; anisotropic grain boundary energy; grain boundary energy database; COMPUTER-SIMULATION; DENDRITIC GROWTH; ANISOTROPY; MOBILITY; MORPHOLOGY; EVOLUTION; KINETICS; SYSTEMS;
D O I
10.1088/0965-0393/22/3/034004
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A 3D phase-field model for grain growth combined with a grain boundary (GB) energy database is proposed. The phase-field model is applied to a grain growth simulation of polycrystalline bcc Fe to investigate the effect of anisotropic GB energy on the microstructural evolution and its kinetics. It is found that the anisotropy in the GB energy results in different microstructures and slower kinetics, especially when the portion of low-angle, low-energy GBs is large. We discuss the applicability of the proposed phase-field simulation technique, based on the GB or interfacial energy database to simulations for microstructural evolution, including abnormal grain growth, phase transformations, etc., in a wider range of polycrystalline materials.
引用
收藏
页数:19
相关论文
共 51 条