罗锡才,刘灏霖,康利梅,刘怡飞,诸进才,张大童,李助军

• 1:广州铁路职业技术学院机电工程学院
• 2:华南理工大学广东省金属新材料制备与成形重点实验室

摘要(Abstract)：

对铸态AZ61镁合金进行不同参数搅拌摩擦加工(FSP),研究工艺参数对其组织演变及力学行为的影响。结果表明:FSP过程中合金发生了动态再结晶,显著细化了晶粒;随着ω/υ(旋转速度/加工速度)比值的提升,晶粒尺寸随之增大,大角度晶界比例也随之增加,位错密度下降。相比于母材,加工后的AZ61镁合金硬度及拉伸性能有明显的提高,主要受益于晶界强化,高比例的大角度晶界及弱化的织构有利于提高FSP试样的强度及塑性。

关键词(KeyWords)： 镁合金;搅拌摩擦加工;工艺参数;组织;织构;力学性能

Abstract:

Keywords:

基金项目(Foundation): 广东普通高校重点项目(自然)(2019GZDXM015);; 广州铁路职业技术学院教科研重点项目(GTXYZ1901)

作者(Author): 罗锡才,刘灏霖,康利梅,刘怡飞,诸进才,张大童,李助军

DOI: 10.13289/j.issn.1009-6264.2020-0205

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