Numerical Simulation of Solidification Structure of High Carbon Steel in Continuous Casting Using Cellular Automaton Method

• DOI: 10.2355/isijinternational.52.823
• Publication Date: 2015-06-19T18:15:18Z
• Authors: Sen Luo; Miaoyong Zhu; Seppo Louhenkilpi
• Keywords: Equiaxed crystals; Supercooling; Dendrite (mathematics)

A combined cellular automaton-finite difference (CA-FD) model has been developed to simulate solute diffusion controlled solidification in continuous steel casting. Constitutional and curvature undercooling were both solved determine the equilibrium temperature growth velocity of solid/liquid interface. Simulations firstly performed for free dendritic from an undercooled melt columnar unidirectional solidification. Finally, competitive equiaxed transition (CET) occurring casting process reproduced by present CA-FD model. The effect fragmentation dendrites due fluid flow induced EMS mould on nuclei was taken into consideration increasing grain density. comparison between simulated experimentally observed results shows that can be used structure formation during steel. influence superheat also analyzed, it found increases reduces ratio, as is empirical well known.