Dispersed barrier hardening in irradiated metals

Computer simulation of plastic deformation in irradiated metals

“…The stress reaches a level, the critical shear stress Tc, that is necessary to move dislocations through the arrays of barriers. The critical shear stress is inversely proportional to interbarrier spacing [7]. In addition, the radiation-produced barriers cause an increase in flow stress, the stress necessary to continue yielding at a constant strain rate.…”