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Elastic properties of Zr-based bulk metallic glasses studied by resonant ultrasound spectroscopy

Published online by Cambridge University Press:  03 March 2011

Zhiying Zhang
Affiliation:
Department of Materials Science and Engineering, The University of Tennessee, Knoxville, Tennessee 37996
Veerle Keppens*
Affiliation:
Department of Materials Science and Engineering, The University of Tennessee, Knoxville, Tennessee 37996
Peter K. Liaw
Affiliation:
Department of Materials Science and Engineering, The University of Tennessee, Knoxville, Tennessee 37996
Yoshihiko Yokoyama
Affiliation:
Institute for Material Research, Tohoku University, Sendai City 980-8577, Japan
Akihisa Inoue
Affiliation:
Institute for Material Research, Tohoku University, Sendai City 980-8577, Japan
*
a) Address all correspondence to this author. e-mail: vkeppens@utk.edu
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Abstract

We report measurements of the elastic properties of Zr-based bulk metallic glasses, Zr52.5Cu17.9Ni14.6Al10Ti5, Zr50Cu30Ni10Al10, and Zr50Cu40Al10 between 5 K and 300 K. Both the shear and longitudinal modulus have been measured as a function of temperature, allowing accurate determination of the Poisson’s ratio and the related ratio of bulk modulus to shear modulus, K/G. These data make it possible to assess the influence of the alloy’s composition on the mechanical properties and enable an evaluation of the correlation between the elastic moduli and the ductility of the alloys.

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Articles
Copyright
Copyright © Materials Research Society 2007

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References

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