基于界面追踪-动网格技术模拟凝固收缩下Fe-C合金宏观偏析

董士虎, 张红伟, 吕文朋, 雷洪, 王强

Numerical Simulation on Macrosegregation in Fe-C Alloy Under Solidification Shrinkage Through Interface Tracking-Dynamic Mesh Technique

DONG Shihu, ZHANG Hongwei, LÜ Wenpeng, LEI Hong, WANG Qiang

图12 铸锭凝固结束时相对溶质浓度分布

Fig.12 Relative concentration distributions of C in ingot at end of solidification (a) consideration of shrinkage + buoyancy (solidification finish at 22000 s) (b) consideration of only shrinkage (solidification finish at 25000 s) (c) consideration of only buoyancy (solidification finish at 31000 s)