中国物理B ›› 2024, Vol. 33 ›› Issue (11): 116402-116402.doi: 10.1088/1674-1056/ad7725

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“Glass-quake” in elastically loaded bulk metallic glasses

Qi Huang(黄琦)1, Kaiguo Chen(陈开果)2,†, Chen Liu(刘辰)3,‡, Guisen Liu(刘桂森)1,§, Yang Shao(邵洋)4, Chenlong Zhao(赵晨龙)1, Ran Chen(陈然)1, Hengtong Bu(卜亨通)4, Lingti Kong(孔令体)1,5, and Yao Shen(沈耀)1,¶   

  1. 1 State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
    2 College of Science, National University of Defense Technology, Changsha 410073, China;
    3 Independent Researcher, Paris, France;
    4 School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;
    5 Materials Genome Initiative Center, Shanghai Jiao Tong University, Shanghai 200240, China
  • 收稿日期:2024-04-25 修回日期:2024-07-11 接受日期:2024-09-04 出版日期:2024-11-15 发布日期:2024-11-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51801122 and 52071210), the Science Challenge Project (Grant No. TZ2018001), and the Science and Technology Commission of Shanghai (Grant No. 21ZR1430800).

“Glass-quake” in elastically loaded bulk metallic glasses

Qi Huang(黄琦)1, Kaiguo Chen(陈开果)2,†, Chen Liu(刘辰)3,‡, Guisen Liu(刘桂森)1,§, Yang Shao(邵洋)4, Chenlong Zhao(赵晨龙)1, Ran Chen(陈然)1, Hengtong Bu(卜亨通)4, Lingti Kong(孔令体)1,5, and Yao Shen(沈耀)1,¶   

  1. 1 State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
    2 College of Science, National University of Defense Technology, Changsha 410073, China;
    3 Independent Researcher, Paris, France;
    4 School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;
    5 Materials Genome Initiative Center, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2024-04-25 Revised:2024-07-11 Accepted:2024-09-04 Online:2024-11-15 Published:2024-11-15
  • Contact: Kaiguo Chen, Chen Liu, Guisen Liu, Yao Shen E-mail:chenkaiguo@nudt.edu.cn;chen.liu.428@hotmail.com;liuguisen@sjtu.edu.cn;yaoshen@sjtu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51801122 and 52071210), the Science Challenge Project (Grant No. TZ2018001), and the Science and Technology Commission of Shanghai (Grant No. 21ZR1430800).

摘要: Amorphous solids exhibit scale-free avalanches, even under small external loading, and thus can work as suitable systems to study critical behavior and universality classes. The abundance of scale-free avalanches in the entire elastic tension regime of bulk metallic glass (BMG) samples has been experimentally observed using acoustic emission (AE) measurements. In this work, we compare the statistics of avalanches with those of earthquakes, and find that they both follow the Gutenberg-Richter law in the statistics of energies and Omori's law of aftershock rates, and share the same characteristics in the distribution of recurrence times. These resemblances encourage us to propose the term "glass-quake" to describe avalanches in elastically loaded BMGs. Furthermore, our work echoes the potential universality of critical behavior in disordered physical systems from atomic to planetary scales, and motivates the use of elastic loaded BMGs as valuable laboratory simulators of seismic dynamics.

关键词: bulk metallic glass, avalanche, earthquake, disorder system, time series

Abstract: Amorphous solids exhibit scale-free avalanches, even under small external loading, and thus can work as suitable systems to study critical behavior and universality classes. The abundance of scale-free avalanches in the entire elastic tension regime of bulk metallic glass (BMG) samples has been experimentally observed using acoustic emission (AE) measurements. In this work, we compare the statistics of avalanches with those of earthquakes, and find that they both follow the Gutenberg-Richter law in the statistics of energies and Omori's law of aftershock rates, and share the same characteristics in the distribution of recurrence times. These resemblances encourage us to propose the term "glass-quake" to describe avalanches in elastically loaded BMGs. Furthermore, our work echoes the potential universality of critical behavior in disordered physical systems from atomic to planetary scales, and motivates the use of elastic loaded BMGs as valuable laboratory simulators of seismic dynamics.

Key words: bulk metallic glass, avalanche, earthquake, disorder system, time series

中图分类号:  (Cracks, sandpiles, avalanches, and earthquakes)

  • 64.60.av
61.43.Dq (Amorphous semiconductors, metals, and alloys) 91.30.Px (Earthquakes) 61.43.-j (Disordered solids)