Micropillar compression studies on a bulk metallic glass in different structural states

Dubach, A and Raghavan, R and Loeffler, JF and Michler, J and Ramamurty, U (2009) Micropillar compression studies on a bulk metallic glass in different structural states. In: Scripta Materialia, 60 (7). pp. 567-570.

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Abstract

Uniaxial compression experiments on 0.3, 1 and 3 mu m diameter micropillars of a Zr-based bulk metallic glass in as-cast, shot-peened and structurally relaxed conditions were conducted. Shear band formation and stable propagation is observed to be the plastic deformation mode in all cases, with no detectable difference in yield strength according to either size or condition. The limitations of uniaxial compression tests in assessing the influence of various material conditions on plasticity, when it is inhomogeneous in nature, are illustrated.

Item Type:	Journal Article
Publication:	Scripta Materialia
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Compression test;Metallic glasses;Plastic deformation;Shear bands;Free volume
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	06 Nov 2009 07:29
Last Modified:	19 Sep 2010 05:28
URI:	http://eprints.iisc.ac.in/id/eprint/19464

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