Computer simulation of grain growth in consideration of reorientation accompanied with activated state

In order to express temperature dependence of grain growth practically, the Monte Carlo simulation using the Potts model has been performed in consideration of reorientation accompanied with activation state. Grain growth is reproduced appropriately at different temperatures by an algorithm used in this study. While little evolution of microstructure is observed at low temperatures, grains grow remarkably at higher temperatures. A lot of 1-site grains are found in a simulated microstructure at high temperatures in the neighborhood of boundaries of comparatively-large grains. This is considered to be formed by large thermal fluctuations at high temperatures. The microstructures obtained from the present simulation are compared with those in previous work. Similar rates of grain growth are observed with and without consideration of a temperature factor of T=0.55T(m), though differences in the grain boundary shapes and grain area distributions are found.