关海昆,李全安,陈晓亚,张帅,王颂博

• 1:河南科技大学材料科学与工程学院
• 2:有色金属共性技术河南省协同创新中心
• 3:西安理工大学材料科学与工程学院

摘要(Abstract)：

采用X射线衍射仪、光学显微镜、扫描电镜,能谱仪和电子拉伸试验机等研究了不同Ag含量对铸态Mg-11Gd-2Y-0.5Zr镁合金的物相、显微组织和拉伸断裂后形貌的影响。结果表明:Ag的添加能在合金中形成新相Ag_2Gd,同时能够提高合金的抗拉强度,细化合金组织,促进第二相在晶界处的析出;当Ag的添加量为1.5%时,合金的抗拉强度达到最大值226 MPa;当Ag的添加量为2%时,合金的晶粒尺寸最小,为46.5μm,第二相的析出最多。

关键词(KeyWords)： 镁合金;Ag;显微组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51571084,51171059)

作者(Author): 关海昆,李全安,陈晓亚,张帅,王颂博

DOI: 10.13289/j.issn.1009-6264.2019-0026

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