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Ductility enhancement in nanoglass: role of interaction stress between flow defects

Singh, I and Narasimhan, R and Zhang, YW (2014) Ductility enhancement in nanoglass: role of interaction stress between flow defects. In: PHILOSOPHICAL MAGAZINE LETTERS, 94 (11). pp. 678-687.

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Official URL: http://dx.doi.org/ 10.1080/09500839.2014.961584

Abstract

Using a thermodynamically consistent non-local plasticity model, the mechanistic origin of enhancement in ductility and suppression of dominant shear banding in nanoglasses (NGs) is analysed. It is revealed that the interaction stress between flow defects plays a central role in promoting global plasticity of NGs. Specifically, we find that the intrinsic length associated with this stress provides a scaling for the shear band width and its coupling with grain size governs the level of enhancement in the deformation behaviour of NGs. The present work may provide useful insights in developing highly ductile NGs for practical engineering applications.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the TAYLOR & FRANCIS LTD, 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Depositing User: Id for Latest eprints
Date Deposited: 13 Jan 2015 04:48
Last Modified: 13 Jan 2015 04:48
URI: http://eprints.iisc.ac.in/id/eprint/50638

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