| Abstract: | An analysis has been carried out of the motion of a pair of sign-similar edge dislocations under a constant shear stress in a simplest nonuniform field of internal stresses τi with a constant gradient. The influence is shown of the dislocation interaction and τi on the activation „volume”︁ of the average velocity of a dislocation pair, which is measured by the flow stress relaxation. The experimentally revealed anomalies of the activation „volume”︁ measured by the flow stress relaxation are regarded as corroborating the analysis and as manifestations of the collective effects of the elastic interaction of sign-similar mobile dislocations. |
