中国物理B ›› 2022, Vol. 31 ›› Issue (9): 98106-098106.doi: 10.1088/1674-1056/ac67c9

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Amorphous transformation of ternary Cu45Zr45Ag10 alloy under microgravity condition

Ming-Hua Su(苏明华), Fu-Ping Dai(代富平), and Ying Ruan(阮莹)   

  1. School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
  • 收稿日期:2022-03-06 修回日期:2022-04-02 接受日期:2022-04-18 出版日期:2022-08-19 发布日期:2022-08-30
  • 通讯作者: Fu-Ping Dai E-mail:fpdai@nwpu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51671161, u1806219, and 52088101) and the Natural Science Foundation Research Project of Shanxi Province, China (Grant No. 2020JZ-08).

Amorphous transformation of ternary Cu45Zr45Ag10 alloy under microgravity condition

Ming-Hua Su(苏明华), Fu-Ping Dai(代富平), and Ying Ruan(阮莹)   

  1. School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2022-03-06 Revised:2022-04-02 Accepted:2022-04-18 Online:2022-08-19 Published:2022-08-30
  • Contact: Fu-Ping Dai E-mail:fpdai@nwpu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51671161, u1806219, and 52088101) and the Natural Science Foundation Research Project of Shanxi Province, China (Grant No. 2020JZ-08).

摘要: The influences of undercooling rate and cooling rate on the microstructural evolution of ternary Cu45Zr45Ag10 alloy using single-roller melt spinning and drop tube are investigated. The rapidly quenched alloy ribbons achieve a homogeneous glass structure. The microstructure of the droplets transforms from the Cu10Zr7 dendrites plus (Cu10Zr7+AgZr) eutectic into Cu10Zr7 dendrite with the decrease of droplet diameter. As the diameter decreases to 180 μm, the Cu45Zr45Ag10 alloy changes from crystal to amorphous structure, showing that the cooling rate is not the only influence factor and the undercooling play a certain role in the forming of the amorphous alloy at the same time under microgravity condition.

关键词: Cu-Zr-Ag, rapid solidification, microgravity, glass transformation

Abstract: The influences of undercooling rate and cooling rate on the microstructural evolution of ternary Cu45Zr45Ag10 alloy using single-roller melt spinning and drop tube are investigated. The rapidly quenched alloy ribbons achieve a homogeneous glass structure. The microstructure of the droplets transforms from the Cu10Zr7 dendrites plus (Cu10Zr7+AgZr) eutectic into Cu10Zr7 dendrite with the decrease of droplet diameter. As the diameter decreases to 180 μm, the Cu45Zr45Ag10 alloy changes from crystal to amorphous structure, showing that the cooling rate is not the only influence factor and the undercooling play a certain role in the forming of the amorphous alloy at the same time under microgravity condition.

Key words: Cu-Zr-Ag, rapid solidification, microgravity, glass transformation

中图分类号:  (Solidification)

  • 81.30.Fb
81.10.Mx (Growth in microgravity environments) 81.05.Kf (Glasses (including metallic glasses))