Ordered diffusion mass transfer under shock conditions

The features of diffusion mass transfer phenomena in metals under shock conditions are considered. The diffusion fluxes arising at severe plastic deformation of material are determined. It is shown that under certain conditions the impurity diffusion from the outer surface into the metal bulk may evolve as a wave process, at which the mass transfer occurs in the form of ordered atomic motion through the lattice. The diffusion wave propagation velocity of is determined.