4.7 Article

Super elastic strain limit in metallic glass films

Journal

SCIENTIFIC REPORTS
Volume 2, Issue -, Pages -

Publisher

NATURE PUBLISHING GROUP
DOI: 10.1038/srep00852

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Funding

  1. National Key Basic Research Program of China [2012CB825700]
  2. National Natural Science Foundation of China [10979002, 50920105101, 51071141, 51050110136, 10904127, 11179026, 11004171]
  3. Zhejiang University-Helmholtz cooperation fund
  4. Department of Science and Technology of Zhejiang province

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On monolithic Ni-Nb metallic glass films, we experimentally revealed 6.6% elastic strain limit by in-situ transmission electron microscopy observations. The origin of high elastic strain limit may link with high free volume in the film, causing the rearrangement of loosely bonded atomic clusters (or atoms) upon elastic deformation. This high elastic limit of metallic glass films will shed light on new application fields for metallic glasses, and also trigger more studies for deformation mechanism of amorphous materials in general.

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