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Superplasticity in intermetallic NiAl nanowires via atomistic simulations

Sutrakar, Vijay Kumar and Mahapatra, D Roy (2010) Superplasticity in intermetallic NiAl nanowires via atomistic simulations. In: Materials Letters, 64 (7). pp. 879-881.

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Official URL: http://dx.doi.org/10.1016/j.matlet.2010.01.050

Abstract

A novel superplastic deformation in an intermetallic B2-NiAl nanowire of cross-sectional dimensions of similar to 20 angstrom with failure strain as high as similar to 700% at 700 K temperature is reported. The minimum temperature under which the superplasticity has been observed is around 0.36 T-m, which is much lower than 0.5 T-m (T-m = melting temperature i.e. 1911 K for bulk B2-NiAl). Superplasticity is observed due to transformation from crystalline phase to amorphous phase after yielding of the nanowire. (C) 2010 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Superplasticity; NiAl intermetallic;High temperature; Nanowire;Mechanical properties
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 08 Jun 2010 08:14
Last Modified: 19 Sep 2010 05:59
URI: http://eprints.iisc.ernet.in/id/eprint/27121

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