결정립 성장에 대한 phase field modeling = Phase Field Modeling of Grain Growth

다국어 초록 (Multilingual Abstract)

Phase field modeling of grain growth has been performed to see the effect anisotropy in grain boundary energy. Large scale phase-field simulations of ideal grain growth in 2D were carried out at the coalescence-free condition. In case of ideal grain growth the vow Neumaww-Mulliws law for all individual grain was satisfied, suggesting the current model reproduce 2D grain growth in a correct way. With increasing the anisotropy, clustering of grains consisted with boundaries with low energy took place as grain coarsening continues. Slight change in steady state grain size distribution profiles with grain boundary energy anisotropy. Central part of the profile becomes convex upward, different from the plateau in isotropic grain growth, but with negligible changes in smaller and larger grain sides. The calculated grain size distributions were different from the experimentally observed profile showing convex peak with long tail at large grain side.