9th International Conference on Modeling and Simulation of Metallurgical Processes in Steelmaking - STEELSIM2021

This study establishes an Eulerian columnar-equiaxed solidification model to study the solidification structure and macrosegregation in the continuous casting process by coupling fluid flow, macro-scale heat transfer, microstructure, and solute transport. The different phases include the extradendritic melt, the columnar solid dendrite, the interdendritic melt between columnar dendrites, the equiaxed solid dendrite, the interdendritic melt between equiaxed dendrites. The results demonstrate that the multiphase columnar-equiaxed solidification model corresponds well with the measured carbon segregation. This phenomenon can be exploited to improve the qualities of bloom and slab.