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Resonant vibration analysis for temperature dependence of elastic properties of bulk metallic glass

Published online by Cambridge University Press:  03 March 2011

Sven Bossuyt ,
Sixto Giménez  and
Jan Schroers
Sven Bossuyt*
Affiliation:
Department of Mechanics of Materials and Constructions, Vrije Universiteit Brussel (VUB), B-1050 Brussels, Belgium
Sixto Giménez
Affiliation:
Department of Metallurgy and Materials Engineering (MTM), Katholieke Universiteit Leuven, B-3001 Heverlee, Belgium
Jan Schroers
Affiliation:
Liquidmetal Technologies, Lake Forest, California 92630
*
a) Address all correspondence to this author. e-mail: [email protected]
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Abstract

The variation of a Zr57Nb5Cu15Ni13Al10 bulk metallic glass’s elastic constants with temperature and thermal history was investigated, using an impulse excitation technique for resonant vibration analysis. The Young’s modulus at 550 K is 78 GPa with a slope of −17 MPa/K in the glass as-produced and increases to 80 GPa with a slope of −26 MPa/K upon annealing. The modulus of the supercooled liquid at 700 K is 74 GPa with a slope of −90 MPa/K, whereas for the crystallized material E = 100 GPa with a slope of −15 MPa/K. These results are interpreted in terms of the vibrational and configurational contributions to the temperature dependence and compared with calorimetry data.

Keywords

AcousticAmorphousElastic properties
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 2 , September 2006 , pp. 533 - 537
Copyright
Copyright © Materials Research Society 2007

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References

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