Cellular automata simulation of microstructural evolution during dynamic recrystallization of an HY-100 steel

Microstructural evolution and plastic flow characteristics of an HY-100 steel were investigated using a simulative model that couples the basic metallurgical principle of dynamic recrystallization (DRX) with the cellular automatIon (CA) method. Variation of dislocation density with local strain of deformation is considered for accurate determination of the microstructural evolution during DRX. Macro-stress–strain relationship was calculated from the average of local stresses and strains. The predictions show very good agreement with the experimental results for the steel.