純アルミニウムの回復動的超塑性

抄録

Dynamic superplasticity is attributed not only to the transformation but also to the recovery process. The latter, recovery dynamic superplasticity, behaves in the same way as the transformation superplasticity. A large strain increasing up to several percent is induced in one cycle. The applied stress and induced strain are related linearly with each other. A straight line showing the above relation passes the original point, and the strain rate sensibility index m is congruent to 1. The dynamic plasticity is observed in the transformation process and also generated by applying a stress during the state change of the material.