Relating activation of shear transformation zones torelaxations in metallic glasses
- 7 June 2010
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 81 (22), 220201
- https://doi.org/10.1103/physrevb.81.220201
Abstract
The mechanisms of plastic deformation of glassy solids and structural origin of relaxation are two fundamental issues. We provide compelling experimental evidence that the activation of shear transformation zones (STZs) and relaxations in metallic glasses are directly related, and the activation energy of the relaxation and the potential-energy barriers of STZs are nearly equivalent. Our results suggest an intrinsic correlation among potential STZs, relaxation, and the inhomogeneous atomic structure of metallic glasses, which has implications for understanding the deformation mechanism and structural origin of relaxation in glasses.
Keywords
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