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Approaching the ideal elastic limit of metallic glasses

Author

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  • Lin Tian

    (Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano) & Hysitron Applied Research Center in China (HARCC), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, PR China.)

  • Yong-Qiang Cheng

    (Johns Hopkins University)

  • Zhi-Wei Shan

    (Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano) & Hysitron Applied Research Center in China (HARCC), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, PR China.)

  • Ju Li

    (Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano) & Hysitron Applied Research Center in China (HARCC), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, PR China.
    Massachusetts Institute of Technology)

  • Cheng-Cai Wang

    (Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano) & Hysitron Applied Research Center in China (HARCC), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, PR China.)

  • Xiao-Dong Han

    (Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology)

  • Jun Sun

    (Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano) & Hysitron Applied Research Center in China (HARCC), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, PR China.)

  • Evan Ma

    (Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano) & Hysitron Applied Research Center in China (HARCC), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, PR China.
    Johns Hopkins University)

Abstract

The ideal elastic limit is the upper bound to the stress and elastic strain a material can withstand. This intrinsic property has been widely studied for crystalline metals, both theoretically and experimentally. For metallic glasses, however, the ideal elastic limit remains poorly characterized and understood. Here we show that the elastic strain limit and the corresponding strength of submicron-sized metallic glass specimens are about twice as high as the already impressive elastic limit observed in bulk metallic glass samples, in line with model predictions of the ideal elastic limit of metallic glasses. We achieve this by employing an in situ transmission electron microscope tensile deformation technique. Furthermore, we propose an alternative mechanism for the apparent 'work hardening' behaviour observed in the tensile stress–strain curves.

Suggested Citation

  • Lin Tian & Yong-Qiang Cheng & Zhi-Wei Shan & Ju Li & Cheng-Cai Wang & Xiao-Dong Han & Jun Sun & Evan Ma, 2012. "Approaching the ideal elastic limit of metallic glasses," Nature Communications, Nature, vol. 3(1), pages 1-6, January.
    • Handle: RePEc:nat:natcom:v:3:y:2012:i:1:d:10.1038_ncomms1619
    DOI: 10.1038/ncomms1619
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    Cited by:

    1. Hengwei Luan & Xin Zhang & Hongyu Ding & Fei Zhang & J. H. Luan & Z. B. Jiao & Yi-Chieh Yang & Hengtong Bu & Ranbin Wang & Jialun Gu & Chunlin Shao & Qing Yu & Yang Shao & Qiaoshi Zeng & Na Chen & C. , 2022. "High-entropy induced a glass-to-glass transition in a metallic glass," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    2. Ge Wu & Sida Liu & Qing Wang & Jing Rao & Wenzhen Xia & Yong-Qiang Yan & Jürgen Eckert & Chang Liu & En Ma & Zhi-Wei Shan, 2023. "Substantially enhanced homogeneous plastic flow in hierarchically nanodomained amorphous alloys," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    3. Yifan Wang & Jing Liu & Jian-Zhong Jiang & Wei Cai, 2024. "Anomalous temperature dependence of elastic limit in metallic glasses," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    4. Wenqing Zhu & Zhi Li & Hua Shu & Huajian Gao & Xiaoding Wei, 2024. "Amorphous alloys surpass E/10 strength limit at extreme strain rates," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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