Shear avalanches in metallic glasses under nanoindentation: Deformation units and rate dependent strain burst cut-off

X. L. Bian, G. Wang, Kang Cheung Chan, J. L. Ren, Y. L. Gao, Q. J. Zhai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

44 Citations (Scopus)


Indented metallic glasses at the nanoscale deform via strain bursts. Conventional continuum descriptions are not appropriate for such highly stochastic, intermittent deformations. In this study, after a statistical analysis of strain bursts in five metallic glasses, the dependence of the cut-off of the strain burst size on deformation units and loading rate is established. For soft metallic glasses with smaller deformation units, cut-off of the strain burst size truncates the scale-free behavior at larger strain burst sizes. For hard metallic glasses, scale-free behavior occurs in a wide range of strain burst sizes.
Original languageEnglish
Article number101907
JournalApplied Physics Letters
Issue number10
Publication statusPublished - 2 Sep 2013

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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