焊后热处理对7055-0.1Sc铝合金搅拌摩擦焊接头的组织与力学性能的影响

马俊雅, 张振, 李静静, 王贝贝, 王英君, 薛鹏, 刘峰超, 倪丁瑞, 肖伯律, 马宗义

Effect of Post-Weld Heat Treatment on Microstructures and Mechanical Properties of Friction Stir Welded 7055-0.1Sc Aluminum Alloy

MA Junya, ZHANG Zhen, LI Jingjing, WANG Beibei, WANG Yingjun, XUE Peng, LIU Fengchao, NI Dingrui, XIAO Bolv, MA Zongyi

表1 7055-0.1Sc-T4轧制板材的化学成分

Table 1 Chemical composition of 7055-0.1Sc-T4 plate (mass fraction, %)

Zn Mg Cu Sc Zr Si Fe Mn Al 7.6~8.4 1.8~2.3 2.0~2.6 0.1 0.08~0.25 ≤0.1 ≤0.15 ≤0.05 Bal.