Temperature-dependent shear band dynamics in a Zr-based bulk metallic glass
- Laboratory of Metal Physics and Technology, Department of Materials, ETH Zurich, Wolfgang-Pauli-Strasse 10, 8093 Zurich (Switzerland)
Flow serrations recorded during inhomogeneous deformation of Zr{sub 52.5}Ti{sub 5}Cu{sub 17.9}Ni{sub 14.6}Al{sub 10} (Vit105) were studied during compression testing at temperatures between -40 and 60 deg. C. The shear band velocities determined exhibit a pronounced temperature dependence covering nearly two orders of magnitude. The velocities follow an Arrhenius-type behavior with an associated activation energy of 0.3+-0.05 eV. The results demonstrate a thermally activated mechanism of shear band propagation, which is similar to the behavior of other, nonmetallic amorphous materials.
- OSTI ID:
- 21347266
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 6 Vol. 96; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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