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Size-dependent deformation behavior in nanosized amorphous metals suggesting transition from collective to individual atomic transport

Author

Listed:
  • Naijia Liu

    (Yale University
    Northwestern University)

  • Sungwoo Sohn

    (Yale University
    Yale University)

  • Min Young Na

    (Korea Institute of Science and Technology)

  • Gi Hoon Park

    (Korea Institute of Science and Technology)

  • Arindam Raj

    (Yale University)

  • Guannan Liu

    (Yale University)

  • Sebastian A. Kube

    (Yale University)

  • Fusen Yuan

    (Chinese Academy of Sciences)

  • Yanhui Liu

    (Chinese Academy of Sciences)

  • Hye Jung Chang

    (Korea Institute of Science and Technology
    University of Science and Technology)

  • Jan Schroers

    (Yale University)

Abstract

The underlying atomistic mechanism of deformation is a central problem in mechanics and materials science. Whereas deformation of crystalline metals is fundamentally understood, the understanding of deformation of amorphous metals lacks behind, particularly identifying the involved temporal and spatial scales. Here, we reveal that at small scales the size-dependent deformation behavior of amorphous metals significantly deviates from homogeneous flow, exhibiting increasing deformation rate with reducing size and gradually shifted composition. This transition suggests the deformation mechanism changes from collective atomic transport by viscous flow to individual atomic transport through interface diffusion. The critical length scale of the transition is temperature dependent, exhibiting a maximum at the glass transition. While viscous flow does not discriminate among alloy constituents, diffusion does and the constituent element with higher diffusivity deforms faster. Our findings yield insights into nano-mechanics and glass physics and may suggest alternative processing methods to epitaxially grow metallic glasses.

Suggested Citation

  • Naijia Liu & Sungwoo Sohn & Min Young Na & Gi Hoon Park & Arindam Raj & Guannan Liu & Sebastian A. Kube & Fusen Yuan & Yanhui Liu & Hye Jung Chang & Jan Schroers, 2023. "Size-dependent deformation behavior in nanosized amorphous metals suggesting transition from collective to individual atomic transport," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-41582-2
    DOI: 10.1038/s41467-023-41582-2
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    References listed on IDEAS

    as
    1. Golden Kumar & Hong X. Tang & Jan Schroers, 2009. "Nanomoulding with amorphous metals," Nature, Nature, vol. 457(7231), pages 868-872, February.
    2. Sungwoo Sohn & Yeonwoong Jung & Yujun Xie & Chinedum Osuji & Jan Schroers & Judy J. Cha, 2015. "Nanoscale size effects in crystallization of metallic glass nanorods," Nature Communications, Nature, vol. 6(1), pages 1-6, November.
    3. Yuan Tian & Wei Jiao & Pan Liu & Shuangxi Song & Zhen Lu & Akihiko Hirata & Mingwei Chen, 2019. "Fast coalescence of metallic glass nanoparticles," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    4. Pei Zhang & Jason J. Maldonis & Ze Liu & Jan Schroers & Paul M. Voyles, 2018. "Spatially heterogeneous dynamics in a metallic glass forming liquid imaged by electron correlation microscopy," Nature Communications, Nature, vol. 9(1), pages 1-7, December.
    5. X.-P. Tang & Ulrich Geyer & Ralf Busch & William L. Johnson & Yue Wu, 1999. "Diffusion mechanisms in metallic supercooled liquids and glasses," Nature, Nature, vol. 402(6758), pages 160-162, November.
    6. J. Pan & Y. X. Wang & Q. Guo & D. Zhang & A. L. Greer & Y. Li, 2018. "Extreme rejuvenation and softening in a bulk metallic glass," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
    7. C. R. Cao & K. Q. Huang & J. A. Shi & D. N. Zheng & W. H. Wang & L. Gu & H. Y. Bai, 2019. "Liquid-like behaviours of metallic glassy nanoparticles at room temperature," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
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