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Atomic packing and short-to-medium-range order in metallic glasses

Author

Listed:
  • H. W. Sheng

    (Johns Hopkins University)

  • W. K. Luo

    (Johns Hopkins University)

  • F. M. Alamgir

    (National Institute of Standards and Technology)

  • J. M. Bai

    (Oak Ridge National Laboratory)

  • E. Ma

    (Johns Hopkins University)

Abstract

Unlike the well-defined long-range order that characterizes crystalline metals, the atomic arrangements in amorphous alloys remain mysterious at present. Despite intense research activity on metallic glasses and relentless pursuit of their structural description, the details of how the atoms are packed in amorphous metals are generally far less understood than for the case of network-forming glasses. Here we use a combination of state-of-the-art experimental and computational techniques to resolve the atomic-level structure of amorphous alloys. By analysing a range of model binary systems that involve different chemistry and atomic size ratios, we elucidate the different types of short-range order as well as the nature of the medium-range order. Our findings provide a reality check for the atomic structural models proposed over the years, and have implications for understanding the nature, forming ability and properties of metallic glasses.

Suggested Citation

  • H. W. Sheng & W. K. Luo & F. M. Alamgir & J. M. Bai & E. Ma, 2006. "Atomic packing and short-to-medium-range order in metallic glasses," Nature, Nature, vol. 439(7075), pages 419-425, January.
    • Handle: RePEc:nat:nature:v:439:y:2006:i:7075:d:10.1038_nature04421
    DOI: 10.1038/nature04421
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    Cited by:

    1. Sebastian A. Kube & Sungwoo Sohn & Rodrigo Ojeda-Mota & Theo Evers & William Polsky & Naijia Liu & Kevin Ryan & Sean Rinehart & Yong Sun & Jan Schroers, 2022. "Compositional dependence of the fragility in metallic glass forming liquids," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    2. Jayalakshmi, S. & Vasantha, V.S. & Fleury, E. & Gupta, M., 2012. "Characteristics of Ni–Nb-based metallic amorphous alloys for hydrogen-related energy applications," Applied Energy, Elsevier, vol. 90(1), pages 94-99.
    3. Ge Wu & Chang Liu & Yong-Qiang Yan & Sida Liu & Xinyu Ma & Shengying Yue & Zhi-Wei Shan, 2024. "Elemental partitioning-mediated crystalline-to-amorphous phase transformation under quasi-static deformation," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    4. Jing Wang & Ping Jiang & Fuping Yuan & Xiaolei Wu, 2022. "Chemical medium-range order in a medium-entropy alloy," Nature Communications, Nature, vol. 13(1), pages 1-6, December.
    5. Kejun Bu & Qingyang Hu & Xiaohuan Qi & Dong Wang & Songhao Guo & Hui Luo & Tianquan Lin & Xiaofeng Guo & Qiaoshi Zeng & Yang Ding & Fuqiang Huang & Wenge Yang & Ho-Kwang Mao & Xujie Lü, 2022. "Nested order-disorder framework containing a crystalline matrix with self-filled amorphous-like innards," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    6. Xingjia He & Yu Zhang & Xinlei Gu & Jiangwei Wang & Jinlei Qi & Jun Hao & Longpeng Wang & Hao Huang & Mao Wen & Kan Zhang & Weitao Zheng, 2023. "Pt-induced atomic-level tailoring towards paracrystalline high-entropy alloy," Nature Communications, Nature, vol. 14(1), pages 1-13, December.

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