Effect of temperature on the plastic zone size and the shear band density in a bulk metallic glass

Prasad, Eswar K and Ramamurty, U (2012) Effect of temperature on the plastic zone size and the shear band density in a bulk metallic glass. In: Materials Science and Engineering A, 535 . pp. 48-52.

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Abstract

High temperature bonded interface indentation experiments are carried out on a Zr based bulk metallic glass (BMG) to examine the plastic deformation characteristics in subsurface deformation zone under a Vickers indenter. The results show that the shear bands are semi-circular in shape and propagate in radial direction. At all temperatures the inter-band spacing along the indentation axis is found to increase with increasing distance from the indenter tip. The average shear band spacing monotonically increases with temperature whereas the shear band induced plastic deformation zone is invariant with temperature. These observations are able to explain the increase in pressure sensitive plastic flow of BMGs with temperature. (C) 2011 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Publication:	Materials Science and Engineering A
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	18 Apr 2012 05:18
Last Modified:	18 Apr 2012 05:18
URI:	http://eprints.iisc.ac.in/id/eprint/44310

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