Violation of the Taylor relation under high-energy external influences

The motion of an edge dislocation ensemble in a binary alloy under high strain rate deformation is theoretically analyzed. Within the framework theory dynamic interaction defects (DID) analytical expression for dependence yield stress on density obtained. conditions violation Taylor relation high-energy external influences are determined. experimentally observed nonmonotonic strength explained. minimum this due to competition between influence various structural moving dislocations. This takes place during transition from dominance drag by one type another defects. Keywords: dislocations, deformation, defects, Guinier-Preston zones, alloys.