Au-Pt合金凝固-固态相变微观组织演化相场法模拟

余东, 马威龙, 王亚莉, 王锦程

Phase Field Modeling of Microstructure Evolution During Solidification and Subsequent Solid-State Phase Transformation of Au-Pt Alloys

YU Dong, MA Weilong, WANG Yali, WANG Jincheng

图2 溶质场插值过程示意图

Fig.2 Schematics of interpolation process of solute field (a) simulated solidification microstructure with a domain of 15 μm × 15 μm and a coarse grid size (dx = dy = 10 nm; xPt—mole fraction of Pt) (b) microstructure extracted from Fig.2a with a small domain (1 μm × 1 μm) and a coarse grid size (dx = dy = 10 nm) (c) microstructure interpolated from Fig.2b with a much finer grid size (d˜x = d˜y = 1 nm)