欧阳康昕,周益环,张帅杰,张磊

• 1:南昌航空大学航空制造工程学院

摘要(Abstract)：

采用光学显微镜、扫描电镜和X射线衍射仪等研究了Ti含量对铸态Mg_(93)Zn_6Y_1合金凝固组织和力学性能的影响。结果表明,添加Ti能够显著细化铸态合金的凝固组织。随着Ti含量的增加,合金中初生α-Mg相的晶粒尺寸先减小后增加,准晶相的形貌由连续网状转变为不连续网状,合金的抗拉强度和伸长率均先增加后降低。当添加0.4 at%Ti时,合金的抗拉强度和伸长率均达到最大值,分别199 MPa和3.4%,与未添加Ti的合金相比分别提高了25.2%和88.9%。

关键词(KeyWords)： Ti;Mg_(93)Zn_6Y_1合金;组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51401102)

作者(Author): 欧阳康昕,周益环,张帅杰,张磊

DOI: 10.13289/j.issn.1009-6264.2020-0399

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