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

• Published in: Transactions of Nonferrous Metals Society of China Vol. 17; no. A01; pp. 271 - 275
• Main Author: 陈永来 李劲风 吕宏军 李世晨 郑子樵 张宇伟 张绪虎
• Format: Journal Article
• Language: English
• Published: 01.11.2007
• Subjects: 热成型技术
• ISSN: 1003-6326

The hot deformation behavior of a new AI-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 s^-1 to 10 s^-1, 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 s^-1 and the lower deformation temperature.