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添加稀土Dy对Cu50Zr46Al4合金的非晶形成能力和力学性能的影响
引用本文:李冬梅,谭力铭,赵晴,谢晗晞,余鹏,夏雷. 添加稀土Dy对Cu50Zr46Al4合金的非晶形成能力和力学性能的影响[J]. 材料研究学报, 2020, 34(8): 605-610. DOI: 10.11901/1005.3093.2020.063
作者姓名:李冬梅  谭力铭  赵晴  谢晗晞  余鹏  夏雷
作者单位:1.重庆师范大学物理与电子工程学院 光电功能材料重庆市重点实验室 重庆 4013312 上海大学材料研究所 上海大学微结构重点实验室 上海 200072
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。

关 键 词:金属材料  镝添加  微合金化  非晶形成能力  力学性能  
收稿时间:2020-02-27

Effect of Dy Addition on Glass-forming Ability and Mechanical Properties of Cu50Zr46Al4 Bulk Metallic Alloy
LI Dongmei,TAN Liming,ZHAO Qing,XIE Hanxi,YU Peng,XIA Lei. Effect of Dy Addition on Glass-forming Ability and Mechanical Properties of Cu50Zr46Al4 Bulk Metallic Alloy[J]. Chinese Journal of Materials Research, 2020, 34(8): 605-610. DOI: 10.11901/1005.3093.2020.063
Authors:LI Dongmei  TAN Liming  ZHAO Qing  XIE Hanxi  YU Peng  XIA Lei
Abstract: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.
Keywords:metallic materials  Dy addition  micro-alloying  glass-forming ability  mechanical properties  
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