Hot deformation behavior of Al-Cu-Li-Mg-Zr alloy containing Zn and Mn

摘要：

The hot deformation behavior of a new Al-Cu-Li-Mg-Zr alloy was studied,and its microstructure and true stress were characterized as function of the deformation temperature and the strain rate using Gleeble-1500 thermal mechanical simulator.The results show that,with the increase of the strain rate from 0.001 s1 to 10 s1,the peak value of true stress is elevated at the same deformation temperature,and at the same strain rate the peak value of the true stress decreases with the increase of the deformation temperature from 360 ℃ to 520 ℃.Dynamic recrystallization easily occurs in the new Al-Cu-Li-Mg-Zr alloy under the lower strain rate and the higher deformation temperature,and dynamic recovery can usually be seen in this alloy under the higher strain rate of 10 s1 and the lower deformation temperature.

关键词： Al-Li alloy hot compression deformation flow stress

作者: CHEN Yong-lai LI Jin-feng Lü Hong-jun LI Shi-chen ZHENG Zi-qiao ZHANG Yu-wei ZHANG Xu-hu

作者单位: Aerospace Research Institute of Materials and Processing Technology,Beijing 100076,China School of Materials Science and Engineering,Central South University,Changsha 410083,China

会议类型: 国际会议

会议名称: 2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)

会议地点: 长沙

会议语种:英文

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）