预变形对超高强Al-Zn-Mg-Cu合金时效组织与力学性能的影响

韩宝帅, 魏立军, 徐严谨, 马晓光, 刘雅菲, 侯红亮

Effect of Pre-Deformation on Microstructure and Mechanical Properties of Ultra-High Strength Al-Zn-Mg-Cu Alloy After Ageing Treatment

HAN Baoshuai, WEI Lijun, XU Yanjin, MA Xiaoguang, LIU Yafei, HOU Hongliang

表1 时效工艺参数

Table 1 Ageing process parameters

Sample No. Heat treatment process Abbreviation 1 No deformation alloy+80 ℃, 12 h+120 ℃, 8 h 12+8 2 3% deformation alloy+80 ℃, 12 h+120 ℃, 8 h 3%+12+8 3 4% deformation alloy+80 ℃, 12 h+120 ℃, 8 h 4%+12+8 4 No deformation alloy+80 ℃, 12 h+120 ℃, 10 h 12+10