多向锻造对AZ40镁合金组织和力学性能的影响Effect of multidirectional forging on microstructure and properties of AZ40 magnesium alloy
支盛兴,袁家伟,李兴刚,石国梁,李永军,马鸣龙,张奎,蒲治军,曾孝云,刘俊,兰成均,郝爱国
摘要(Abstract):
采用多向锻造(MDF)对Mg-4Al-1Zn-0.5Mn合金进行塑性变形,利用光学显微镜和电子背散射衍射(EBSD)等分析了合金的组织与织构。结果表明:随着锻造道次的增加,合金中的小角度晶界比例减少,大角度晶界有所增加,晶粒细化,织构有所改变,织构强度降低,各向异性减弱,径向力学性能提高。经过6道次锻造后合金的径向晶粒最细,径向塑性最高。
关键词(KeyWords): Mg-4Al-1Zn-0.5Mn合金;多向锻造;织构;力学性能
基金项目(Foundation):
作者(Author): 支盛兴,袁家伟,李兴刚,石国梁,李永军,马鸣龙,张奎,蒲治军,曾孝云,刘俊,兰成均,郝爱国
DOI: 10.13289/j.issn.1009-6264.2020-0624
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