Atomic simulations of diffusional phase transformations [Simulations atomiques des transformations de phases contr?lées par la diffusion]

摘要

We present recent applications of the atomistic diffusion model and of the kinetic Monte Carlo (AKMC) algorithm to alloys of industrial interest or to model systems. These applications include study of homogeneous and heterogeneous precipitation during thermal ageing as well as of phase transformation under irradiation. The AKMC simulations are also used to test the main assumptions and limitations of more simple models and classical theories used in the industry, e.g. the classical nucleation theory.