Abstract: | Plastic deformation is treated as a nonequilibrium structural transformation characterized by order parameters. The latter determine the plastic part of the strain tensor. Nonlinear rate equations of the reaction-diffusion type with temperature and stress dependent coefficients are derived for the order parameters. The coefficients are calculated for the case where plastic deformation is described by a single order parameter. Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 6, pp. 3–7, June, 1999. |