中国物理B ›› 2017, Vol. 26 ›› Issue (1): 17104-017104.doi: 10.1088/1674-1056/26/1/017104

所属专题： TOPICAL REVIEW — Amorphous physics and materials

• TOPICAL REVIEW—Amorphous physics and materials • 上一篇    下一篇

Multiscale structures and phase transitions in metallic glasses: A scattering perspective

Si Lan(兰司), Zhenduo Wu(吴桢舵), Xun-Li Wang(王循理)   

  1. 1. Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong, China;
    2. Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, Nanjing 210094, China;
    3. City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
  • 收稿日期:2016-11-29 修回日期:2016-12-23 出版日期:2017-01-05 发布日期:2017-01-05
  • 通讯作者: Xun-Li Wang E-mail:xlwang@cityu.edu.hk
  • 基金资助:

    Project supported by Shenzhen Science and Technology Innovation Commission of China (Grant No. R-IND8701) and the Croucher Foundation (Project No. CityU 9500020). Si Lan is partially supported by the Fundamental Research Funds for the Central Universities of China (Grant No. 30915015103) and the National Natural Science Foundation of China (Grant No. 51501090). Zhenduo Wu and Xun-Li Wang are partially supported by the National Natural Science Foundation of China (Grant No. 51571170).

Multiscale structures and phase transitions in metallic glasses: A scattering perspective

Si Lan(兰司)1,2, Zhenduo Wu(吴桢舵)1,3, Xun-Li Wang(王循理)1,3   

  1. 1. Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong, China;
    2. Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, Nanjing 210094, China;
    3. City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
  • Received:2016-11-29 Revised:2016-12-23 Online:2017-01-05 Published:2017-01-05
  • Contact: Xun-Li Wang E-mail:xlwang@cityu.edu.hk
  • Supported by:

    Project supported by Shenzhen Science and Technology Innovation Commission of China (Grant No. R-IND8701) and the Croucher Foundation (Project No. CityU 9500020). Si Lan is partially supported by the Fundamental Research Funds for the Central Universities of China (Grant No. 30915015103) and the National Natural Science Foundation of China (Grant No. 51501090). Zhenduo Wu and Xun-Li Wang are partially supported by the National Natural Science Foundation of China (Grant No. 51571170).

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摘要：

Amorphous materials are ubiquitous and widely used in human society, yet their structures are far from being fully understood. Metallic glasses, a new class of amorphous materials, have attracted a great deal of interests due to their exceptional properties. In recent years, our understanding of metallic glasses increases dramatically, thanks to the development of advanced instrumentation, such as in situ x-ray and neutron scattering. In this article, we provide a brief review of recent progress in study of the structure of metallic glasses. In particular, we will emphasize, from the scattering perspective, the multiscale structures of metallic glasses, i.e., short-to-medium range atomic packing, and phase transitions in the supercooled liquid region, e.g., crystallization and liquid-to-liquid phase transition. We will also discuss, based on the understanding of their structures and phase stability, the mechanical and magnetic properties of metallic glasses.

关键词: metallic glasses, phase transitions, neutron scattering, x-ray scattering

Abstract:

Amorphous materials are ubiquitous and widely used in human society, yet their structures are far from being fully understood. Metallic glasses, a new class of amorphous materials, have attracted a great deal of interests due to their exceptional properties. In recent years, our understanding of metallic glasses increases dramatically, thanks to the development of advanced instrumentation, such as in situ x-ray and neutron scattering. In this article, we provide a brief review of recent progress in study of the structure of metallic glasses. In particular, we will emphasize, from the scattering perspective, the multiscale structures of metallic glasses, i.e., short-to-medium range atomic packing, and phase transitions in the supercooled liquid region, e.g., crystallization and liquid-to-liquid phase transition. We will also discuss, based on the understanding of their structures and phase stability, the mechanical and magnetic properties of metallic glasses.

Key words: metallic glasses, phase transitions, neutron scattering, x-ray scattering

中图分类号:  (Amorphous semiconductors, metallic glasses, glasses)

  • 71.23.Cq
64.70.-p (Specific phase transitions) 61.05.F- (Neutron diffraction and scattering) 61.05.cf (X-ray scattering (including small-angle scattering))