Constitutive modeling of flow stress and work hardening behavior while considering dynamic strain aging

The phenomenon of dynamic strain aging (DSA) occurs in many alloy systems and inevitably leads to variations in the flow stress and work hardening behavior. In this study, a modified constitutive relationship that takes into account DSA is proposed for modeling the flow stress and work hardening behavior of alloys. We theoretically show that the additional strengthening caused by DSA depends on the strain and strain rate at a given temperature. …