Yb含量对Mg-Gd-Y-Zn-Zr合金微观组织与力学性能的影响

王升, 朱彦丞, 潘虎成, 李景仁, 曾志浩, 秦高梧

Effect of Yb Content on Microstructure and Mechanical Property of Mg-Gd-Y-Zn-Zr Alloy

WANG Sheng, ZHU Yancheng, PAN Hucheng, LI Jingren, ZENG Zhihao, QIN Gaowu

图1 峰时效态GWZK-xYb合金的室温及250 ℃高温工程应力-应变曲线、挤压态GWZK-xYb合金的室温工程应力-应变曲线及高强度Mg-Gd系合金强度对比[20~26]

Fig.1 Engineering stress-strain curves of peak-aged GWZK-xYb alloys (a, b) and extruded GWZK-xYb alloys (c) at different temperatures and comparison of high-strength/peak-aged Mg-Gd series alloys prepared by similar extrusion process[20~26] (d) (Black and red curves are the fitting curves of tensile yield strength (TYS) and untimate tensile strength (UTS) of high strength Mg-Gd series alloys, respectively) (a, c) at room temperature (25 oC) (b) at 250 oC