Cellular automaton a model to simulate nucleation and growth of ferrite grains for low-carbon steels

摘要

A two-dimensional cellular automaton model was developed for the simulation of nucleation and growth of ferrite grains at various cooling rates in low-carbon steels. The model calculates the diffusion of the solute and temperature fields in an explicit Finite method and incorporates local temperature and concentration changes into a Nucleation or growth function, which is utilized by he automaton in a probabilistic Fashion. The modeling provides an efficient way to understand how those physical Processes dynamically progress and affect nucleation and growth of ferrite grains.