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8 仅考虑凝固收缩情况下收缩腔形成过程

Fig.8 Formation of shrinkage cavity by consideration of only shrinkage (left—liquid volume fraction, right—relative concentration distribution of C (a) t = 50 s (b) t = 1050 s (c) t = 3700 s (d) t = 14200 s (e) t = 20000 s (f) t = 25000 s