Characterization of activation energy for flow in metallic glasses
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)
The molar volume (V{sub m}) scaled flow activation energy ({Delta}E), namely as the activation energy density {rho}{sub E}={Delta}E/V{sub m}, is proposed to describe the flow of metallic glasses. Based on the energy landscape, both the shear and bulk moduli are critical parameters accounting for the {rho}{sub E} of both homogeneous and inhomogeneous flows in metallic glasses. The expression of {rho}{sub E} is determined experimentally to be a simple expression of {rho}{sub E}=(10/11)G+(1/11)K. The energy density perspective depicts a realistic picture for the flow in metallic glasses and is suggestive for understanding the glass transition and deformation in metallic glasses.
- OSTI ID:
- 21538055
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 83, Issue 1; Other Information: DOI: 10.1103/PhysRevB.83.012201; (c) 2011 American Institute of Physics; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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