A MONTE-CARLO SIMULATION APPLIED TO THE MODELING OF NUCLEATION OF TEXTURE

A simulation model has been developed to describe the nucleation of annealing textures in cold rolled metals. In this simulation, the microstructure is represented by a two dimensional discrete lattice, each site of the lattice having an orientation representing the texture of the grain to which it belongs. Firstly, the microstructure of the deformed state is generated after which the stored energy of deformation is calculated from the grain orientation and the local misorientation between sites. With a Monte-Carlo process, the nucleation takes place, at sites representing a local maximum of stored energy. The evolution of the microstructure and texture are kept track of during the simulation. Testing of the model on low carbon steel provides results of the kinetics of the process and on the texture development which agree with experimental observations. The potential applications of such type of simulation are discussed.