张苏鹏,王军丽,章震威,史庆南

• 1:昆明理工大学材料科学与工程学院
• 2:昆明理工大学分析测试研究中心
• 3:云南省分析测试中心
• 4:南京理工大学材料科学与工程学院

摘要(Abstract)：

采用一种新的复合镦挤法(Cyclic equal channel compression,CECC)制备了超细晶1060铝合金,即等通道转角挤压(Equal channel angular pressing,ECAP)与多向压缩(Multi-axial compression,MAC)的组合工艺,并通过电子背散射衍射技术(EBSD)分析了复合镦挤后试样的微观组织。为了验证实验的可行性,利用DEFORM 3D软件对试样复合镦挤过程中的损伤值、最大主应力、等效应力、等效应变的变化过程进行了模拟。结果表明:模拟结果显示各项参数变化均在正常范围内;复合镦挤之后,试样的晶粒组织均匀细小且接近于等轴状,得到了优异的超细晶组织。

关键词(KeyWords)： 超细晶1060铝合金;有限元模拟;复合镦挤

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51564032);; 昆明理工大学分析测试基金(2018M20172230122)

作者(Author): 张苏鹏,王军丽,章震威,史庆南

DOI: 10.13289/j.issn.1009-6264.2019-0572

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