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Evolution of the Free Volume during Homogeneous Flow of a Metallic Glass

Published online by Cambridge University Press:  01 February 2011

M. Heggen ,
F. Spaepen  and
M. Feuerbacher
M. Heggen
Affiliation:
Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425 Jülich, Germany
F. Spaepen
Affiliation:
Division of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
M. Feuerbacher
Affiliation:
Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425 Jülich, Germany
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Abstract

Glassy Pd41Ni10Cu29P20 was creep-tested in compression at constant true stress. The defect concentrations were shown to be reversible with reproducible kinetics. The results could be fit better with a defect creation rate that is proportional to the applied power density than with one that depends on the strain rate only. The dilatation mechanism for creation of free volume is inefficient in energy and generation of free volume.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 806: Symposium MM – Amorphous and Nanocrystalline Metals , 2003 , MM7.2
Copyright
Copyright © Materials Research Society 2004

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References

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