Journal
APPLIED PHYSICS LETTERS
Volume 103, Issue 10, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4820782
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Funding
- NSF of China [51171098, 51222102, 11271339]
- RGC of the Hong Kong [PolyU511211]
- Shanghai Pujiang Program [11PJ1403900]
- Innovation Program of Shanghai Municipal Education Commission [12ZZ090]
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning
- Shanghai University.
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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. (C) 2013 AIP Publishing LLC.
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