Calculation of the effective diffusion coefficient for random wear surface migration on different scales

AI Dmitriev, PHYSICAL MESOMECHANICS, 15, 333-336 (2012).

DOI: 10.1134/S1029959912030162

The paper considers the contact interaction of crystalline solids under shear deformation in the context of molecular dynamics. The interatomic interaction is specified by a potential calculated using the embedded atom method. The peculiarities of structural changes in a contact zone are studied for various materials of the contact pair. Based on the data extracted, the effective diffusion coefficient was estimated for random migration of the contact zone in a direction perpendicular to applied shear strains. The calculation results agree well with data of a microscopic contact model built around the method of movable cellular automata.

Return to Publications page