The Dynamic Recrystallization Model of 7050 Al-alloy During Hot Deformation
In this paper,the compression stress-strain curves of 7050 Al-alloy under various deformation conditions were obtained,and the recrystallization structures were analyzed.The main parameters of dynamic recrystallization model were determined.The rationality of the model parameters were verified by hot compression and extrusion.The results show that the accuracy of the model is high enough for predicting the recrystallization of the 7050 Al-alloy during hot deformation.Comparison of the experiment and calculated results in hot compression shows that the maximum relative error of the recrystallization fraction is 11.4%.Comparison of the experiment and calculated results in hot extrusion shows that the maximum relative error of the recrystallization fraction is 13.0%,and that of the recrystallization grain size is 14.9%.
7050 Al-alloy Recrystallization Hot extrusion simulation and prediction
Zhihao Zhang Wenrong Hou Qinghai Pang Jianxin Xie
Institute for Advanced Materials and Technology,University of Science and Technology Beijing,Beijing CITIC heavy industries forging process department, Luoyang 471003,PR China
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
274-281
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）