Equilibrium viscosity of the Zr{sub 41.2}Ti{sub 13.8}Cu{sub 12.5}Ni{sub 10}Be{sub 22.5} bulk metallic glass-forming liquid and viscous flow during relaxation, phase separation, and primary crystallization
- California Inst. of Tech., Pasadena, CA (United States). W.M. Keck Lab. of Engineering Materials
The flow behavior of the supercooled Zr{sub 41.2}Ti{sub 13.8}Cu{sub 12.5}Ni{sub 10}Be{sub 22.5} bulk metallic glass-forming liquid is studied in isothermal three-point beam-bending experiments. The experiments lead to the determination of the equilibrium viscosity as a function of temperature. Comparison with other glass-forming liquids shows that the Zr{sub 41.2}Ti{sub 13.8}Cu{sub 12.5}Ni{sub 10}Be{sub 22.5}, alloy is a strong liquid, similar to sodium silicate liquids. Flow measurements during phase separation and subsequent formation of crystals embedded in a non-crystalline matrix reveal a dramatic slowdown of the kinetics of the matrix that is expressed in an increase of the viscosity by several orders of magnitude.
- OSTI ID:
- 665183
- Journal Information:
- Acta Materialia, Vol. 46, Issue 15; Other Information: PBD: 18 Sep 1998
- Country of Publication:
- United States
- Language:
- English
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