Modeling of Grain Growth Evolution in Finishing Rolling of Thin Strip by Monte Carlo Method

In this paper a new 3D model is proposed to simulate the grain boundary migration during hot finishing rolling of thin strip with Monte Carlo method. The hot rolling of thin strip is simulated by thermo-mechanical coupled finite element method. The temperature of nodes in simulated region is picked from the FE data results. In the present work the temperature history is applied to the boundary conditions of the 3D Monte Carlo lattices sites. The Monte Carlo time step is related to the real time in a grain growth curve of a test. The simulation results show that the ferrite grain sizes agree well with the experimental results and the FE results. This Monte Carlo simulation technique provides a new way for investigating the grain sizes.