热处理对电弧定向能量沉积Al-Zn-Mg-Cu-Sc合金显微组织与力学性能的影响

秦凤明, 李亚菲, 李亚杰, 赵晓东, 梁上上, 陈金秋

Effect of Heat Treatment on the Microstructural Characteristics and Mechanical Properties of Al-Zn-Mg-Cu-Sc Alloy Prepared via Wire-Arc Directed Energy Deposition Process

QIN Fengming, LI Yafei, LI Yajie, ZHAO Xiaodong, LIANG Shangshang, CHEN Jinqiu

表1 材料的化学成分 (mass fraction / %)

Table 1 Chemical compositions of the materials

Alloy Zn Mg Cu Sc Cr Fe Si Ti Al 7075-Sc wire 5.52 2.56 1.62 0.25 0.11 0.32 0.25 0.14 Bal. As-deposited 5.11 2.38 1.48 0.23 0.12 0.28 0.22 0.14 Bal.