陈晓亚,李全安,李志涛,王颂博,张帅,关海昆

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

摘要(Abstract)：

采用电磁感应炉制备了Mg-13Gd-xNd-0.5Zr合金(x=0, 1, 2, 3 mass%),并结合X射线衍射仪、光学显微镜、扫描电镜、能谱仪、电子拉伸实验机等对合金的相组成、微观组织、元素分布、力学性能等进行分析测试。结果表明:Mg-13Gd-xNd-0.5Zr合金组织主要由α-Mg基体和Mg_5Gd、Mg_(41)Nd_5相组成,Mg_5Gd和Mg_(41)Nd_5相主要分布在晶界处;稀土元素Nd的加入能够细化合金组织,并引起α-Mg基体晶格畸变;当添加2%的Nd时,合金抗拉强度达到最高245 MPa,与不含Nd合金相比提高了16.33%。

关键词(KeyWords)： Mg-Gd-Nd-Zr合金;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);; 河南省重点科技攻关计划资助项目(152102210072)

作者(Author): 陈晓亚,李全安,李志涛,王颂博,张帅,关海昆

DOI: 10.13289/j.issn.1009-6264.2018-0280

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