科研之友
微信
新浪微博
Facebook
分享链接
摘要
The window of thermomechanical parameters where dynamic recrystallization occurs can be predicted according to the power dissipation map based on dynamic materials model, and the distribution of thermomechanical parameters in metal forging can be calculated by using finite element (FE) simulation. Thus, the zone of dynamic recrystallization and its evolution in metal forging not only can be simulated and predicted, but also the forging process parameters where dynamic recrystallization occurs can be optimized by the combination of the window of thermomechanical parameters where dynamic recrystallization occurs and finite element simulaton, which provides a new way for realizing the control of microstructure and property of forging. A method for simulating and predicting dynamic recrystallization in metal forging is proposed based on the combination of the thermomechanical parameter window of dynamic recrystallization predicted by power dissipation map and finite element simulation, and the method is already integrated into the commercial FE software Deform 3D. The zone of dynamic recrystallization and its evolution in compression of titanium alloy TC11 at process parameters (1020 degrees C, 0.1 s(-1)), (1050 degrees C, 0.1 s(-1)), (1050, degrees C, 10 s(-1)) and constant strain rate are successfully simulated and predicted by using the modified FE software Deform 3D. The simulated and predicted result is in good agreement with experiment.
- 出版日期2014-9-11
- 单位南昌航空大学
