Materials Chemistry and Physics, Vol.217, 98-101, 2018
Activation volume and its relation with plastic instability
In the present work, a criterion based on relation between strain hardening rate and rate of change in activation volume is proposed for predicting formation of shear bands. The proposed criteria is validated by tracking changes in orientation distribution function (texture) as a function of shear band formation. The propensity of shear banding and its relation with operative rate controlling deformation mechanism is additionally discussed.