徐桂芳,顾晓栋,龙江馨

• 1:江苏大学材料科学与工程学院

摘要(Abstract)：

采用光学显微镜、扫描电镜(SEM)和X射线衍射(XRD)等研究了喷射成形2195铝锂合金挤压态以及不同固溶处理后的显微组织,并进行了力学性能测试。结果表明:挤压态合金存在富铜第二相颗粒;固溶处理后,合金的显微组织发生了明显的变化,未溶的第二相颗粒明显减少,力学性能优于挤压态合金;505℃固溶处理后,合金出现了再结晶现象,515℃保温40 min后的合金力学性能最佳,其硬度为161.3 HV,抗拉强度为475 MPa,伸长率为8.4%。

关键词(KeyWords)： 固溶处理;喷射成形;2195铝锂合金;显微组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 工信部民用飞机专项(MJZ-2016-G-68)

作者(Author): 徐桂芳,顾晓栋,龙江馨

DOI: 10.13289/j.issn.1009-6264.2018-0399

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