Modeling and Simulation of Microstructure Evolution in Steel Processing.

A scheme for integrating grain growth model in phase transition and grain distortion calculation in plastic deformation is proposed, which enables the simulation of microstructure evolution in steel processing when phase transition takes place during rolling. The grain shape deformation is calculated by transforming grid coordinates according to homogeneous deformation matrix. Grain growth in phase transition is computed by phase-field model. Apart from the direct distortion effect of rolling on grain geometry, the change of interface geometry affects the interface propagation due to the anisotropic property of the interface energy. Finally, the method for integration of microstructure simulation with steel crystallography is discussed. [ABSTRACT FROM AUTHOR]