Extraordinary high strain rate superplasticity in electrodeposited nano-nickel and alloys

Prasad, MJNV and Chokshi, AH (2010) Extraordinary high strain rate superplasticity in electrodeposited nano-nickel and alloys. In: Scripta Materialia, 63 (1). pp. 136-139.

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Abstract

Superplastic materials exhibit very large elongations to failure,typically >500%, and this enables commercial forming of complex shaped components at slow strain rates of similar to 10(-4) s(-1). We report extraordinary record superplastic elongations to failure of up to 5300% at both high strain rates and low temperature in electrodeposited nanocrystalline Ni and some Ni alloys. Superplasticity is not related to the presence of sulfur or a low melting phase at grain boundaries. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	Scripta Materialia
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Superplasticity;Nanocrystalline;Nickel Electrodeposition
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	23 Jun 2010 06:15
Last Modified:	19 Sep 2010 06:08
URI:	http://eprints.iisc.ac.in/id/eprint/28283

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