Study on Dynamic Recrystallization Behavior of Ti Micro-alloyed Steel and Its Model
The dynamic recrystallization(DRX) behavior of Ti micro-alloyed steel under different deformation conditions was studied by using a Gleeble 3800 thermo/mechanical simulator.The results show that the activation energy of deformation is connected with deformation condition,and it increases with the increase of strain rate.The Avrami exponent m is connected with deformation condition as well.Using regression analysis,the DRX model of characteristic strain,characteristic stress,dynamics and grain size at stable condition for the steel was eslablished,and the predicted and measured values are in good agreements.