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Nano-Mechanical Study of Mechanically Alloyed Zr-Cu-Al-Ni Glass Composite Containing Second-Phase ZrC Particles

Published online by Cambridge University Press:  01 February 2011

Germán Alcalá ,
Sonia Mato ,
Stefano Deledda ,
Martin Knieps ,
Ude Hangen ,
Jürgen Eckert ,
Annett Gebert  and
Ludwig Schultz
Germán Alcalá
Affiliation:
IFW Dresden, Institute for Metallic Materials, P.O. Box 27 00 16, D-01171 Dresden, Germany
Sonia Mato
Affiliation:
IFW Dresden, Institute for Metallic Materials, P.O. Box 27 00 16, D-01171 Dresden, Germany
Stefano Deledda
Affiliation:
IFW Dresden, Institute for Metallic Materials, P.O. Box 27 00 16, D-01171 Dresden, Germany
Martin Knieps
Affiliation:
SURFACE, Rheinstr.7, D-41836 Hückelhoven, Germany
Ude Hangen
Affiliation:
SURFACE, Rheinstr.7, D-41836 Hückelhoven, Germany
Jürgen Eckert
Affiliation:
TU Darmstadt, Material Science, Physical Metallurgy, Petersenstr. 23, D-64287 Darmstadt, Germany
Annett Gebert
Affiliation:
IFW Dresden, Institute for Metallic Materials, P.O. Box 27 00 16, D-01171 Dresden, Germany
Ludwig Schultz
Affiliation:
IFW Dresden, Institute for Metallic Materials, P.O. Box 27 00 16, D-01171 Dresden, Germany
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Abstract

Metallic glasses exhibit generally high hardness and elastic modulus values at the expense of very limited plasticity. The incorporation of crystalline particles within an amorphous metallic matrix has been widely reported to improve the performance of these materials by reducing crack propagation. The present work analyzes the influence of nanometer-size ZrC particles on the nano-mechanical behavior of mechanically alloyed Zr55Cu30Al10Ni5 glassy matrix composites. The volume fraction of ZrC particles ranged from zero up to 20 vol. %, showing a critical change in the mechanical behavior between 10 and 20 vol. %, particularly in the elastic response.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 806: Symposium MM – Amorphous and Nanocrystalline Metals , 2003 , MM8.8
Copyright
Copyright © Materials Research Society 2004

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References

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