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Geometry-sensitive plasticity of a monolithic bulk metallic glass

Published online by Cambridge University Press:  01 February 2011

WenFei Wu  and
Yi Li
WenFei Wu
Affiliation:
wuwenfei@nus.edu.sg, National University of Singapore, Department of Materials Science and Engineering, Engineering Drive 1, Singapore, 117576, Singapore
Yi Li
Affiliation:
mseliy@nus.edu.sg, National University of Singapore, Department of Materials Science and Engineering, Singapore, 117576, Singapore
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Abstract

We report a strong geometry-dependence of compressive plasticity in a Zr-based bulk metallic glass (BMG). With a standard orthogonal geometry, the Zr-based BMG typically fractured at a plastic strain less than 2%. However, by modifying the sample geometry while maintaining the sample aspect ratio, a large apparent compressive plastic strain over 10% was achieved consistently. These results present a new method on arresting the catastrophic failure of the glassy alloys and offer ways for BMGs in engineering applications.

Keywords

amorphousalloystress/strain relationship
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1048: Symposium Z – Bulk Metallic Glasses–2007 , 2007 , 1048-Z05-06
Copyright
Copyright © Materials Research Society 2008

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