摘要
使用铜模吸铸法制备Cu50-xZr46Al4Dyx(x=0~4)系列合金,研究了Dy对其非晶形成能力和力学性能的影响。结果表明,添加1%~2%(原子分数)的Dy能明显提高Cu50-xZr46Al4Dyx合金的热稳定性和非晶形成能力。添加适量的Dy能提高体系的强度和塑性变形能力。还讨论了添加Dy元素影响Cu50-xZr46Al4Dyx体系非晶形成能力和力学性能的机理。
A series of Cu50-xZr46Al4Dyx(x=0~4)alloys is prepared by copper mold casting based on Cu50Zr46Al4 bulk metallic glass(BMG).The effect of Dy addition on the glass forming ability and mechanical properties of Cu50-xZr46Al4Dyx alloy was investigated through thermodynamics and mechanical experiments.It is found that 1%~2%(atomic fraction)Dy addition can significantly improve the thermal stability of Cu50-xZr46Al4Dyx,and the glass forming ability of the alloy.The strength and plastic deformation ability of the alloy can be improved effectively by proper Dy addition.The influence of Dy addition on the glass forming ability and mechanical properties of Cu50-xZr46Al4Dyx is also discussed.
作者
李冬梅
谭力铭
赵晴
谢晗晞
余鹏
夏雷
LI Dongmei;TAN Liming;ZHAO Qing;XIE Hanxi;YU Peng;XIA Lei(College of Physics and Electronic Engineering Chongqing Normal University,Chongqing Key Laboratory of Photo-Electric Functional Materials,Chongqing 401331,China;Laboratory for Microstructure&Institute of Materials,Shanghai University,Shanghai 200072,China)
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
2020年第8期605-610,共6页
Chinese Journal of Materials Research
基金
重庆市基础研究与前沿探索项目(cstc2018jcyjAX0329,cstc2018jcyjAX0444)
重庆市教委科学技术研究重点项目(KJZD-K201900501)。
关键词
金属材料
镝添加
微合金化
非晶形成能力
力学性能
metallic materials
Dy addition
micro-alloying
glass-forming ability
mechanical properties
