摘要
主要介绍近年来北京工业大学在高强韧稀土镁合金的研究进展,通过添加稀土元素铒(Er)和钆(Gd)开发系列耐热Mg-Zn-Er合金以及高强韧Mg-Gd-Er(-Zn)-Zr合金.研究获得Mg-Zn-Er合金中I相和W相的形成范围及其对合金抗蠕变性能的影响规律;通过成分优化和复合加工方式改善Mg-Gd-Er(-Zn)-Zr合金的力学性能,为设计和制备高性能镁合金材料提供参考依据.
The developed high-strength rare earth-magnesium alloys in Beijing University of Technology was introduced in this paper.By adding Erbium(Er)and Gadolinium(Gd)elements,heat-resistant Mg-Zn-Er alloys and high-strength Mg-Gd-Er(-Zn)-Zr alloys were developed.The formation range of phases I and W in the Mg-Zn-Er alloy and their effects on the creep resistance of the alloy were obtained,and the mechanical properties of Mg-Gd-Er(-Zn)-Zr alloy were enhanced by composition optimization and composite processing,which provide a reference basis for the design and fabrication of high-performance magnesium alloy materials.
作者
杜文博
贾林玥
王朝辉
刘轲
李淑波
杜宪
DU Wenbo;JIA Linyue;WANG Zhaohui;LIU Ke;LI Shubo;DU Xian(College of Materials Science and Engineering,Bejing University of Technology,Beijing 100124,China)
出处
《北京工业大学学报》
CAS
CSCD
北大核心
2020年第6期710-718,共9页
Journal of Beijing University of Technology
基金
国家重点研发项目资助(2016YFB0301101,2016YFB0301000,2016YFB0101604)。
关键词
镁合金
稀土元素
相
高性能
显微组织
塑性变形
magnesium alloys
rare earth elements
phase
high-performance
microstructure
plastic deformation
