Abstract
Phase field model for representing mechanical response of the microstructure to mechanical loading is presented. The base model is the multi-phase-field model complemented by additional terms considering the effect of stress and grain-size, and numerical simulations are carried out. The microstructure is distorted according to macroscopic deformation applied, and grain rearrangement is initiated promptly. Consequently, grain distribution with stable hexagonal grains is obtained. Repeated load is also imposed to the model, and it revealed that such loading accelerated the grain stabilization.