The mechanism of non-equilibrium excess volume generation in grain boundaries during plastic deformation was considered. A numerical analysis of kinetics of self-diffusion

along non-equilibrium grain boundaries during deformation and annealing was made for a model polycrystal. The influence of strain rate and grain size on the diffusion coefficient was investigated.

Analysis of Intragranular Deformation Influence on the Grain Boundary Diffusive Properties. V.N.Perevezentsev, A.S.Pupynin, J.V.Svirina: Materials Science and Engineering A, 2005, 410-411, 273-6