The University of Southampton
University of Southampton Institutional Repository

Flow mechanisms in ultrafine-grained metals with an emphasis on superplasticity

Kawasaki, Megumi, Balasubramanian, N. and Langdon, Terence G. (2011) Flow mechanisms in ultrafine-grained metals with an emphasis on superplasticity Materials Science and Engineering: A, 528, (21), pp. 6624-6629. (doi:10.1016/j.msea.2011.05.005).

Record type: Article


An analysis was conducted to examine the flow behavior of ultrafine-grained (UFG) metals produced by severe plastic deformation (SPD) processing in equal-channel angular pressing. The results reveal two distinct types of behavior. At elevated temperatures, the analysis shows that superplastic flow is accurately described by the theoretical mechanism developed for coarse-grained metals so that flow in UFG materials may be interpreted using conventional flow mechanisms. By contrast, localized small-scale grain boundary sliding is observed during deformation at low temperatures and this is attributed to the movement of extrinsic dislocations in the non-equilibrium grain boundaries produced by SPD processing

Full text not available from this repository.

More information

e-pub ahead of print date: 14 May 2011
Published date: 15 August 2011
Organisations: Bioengineering Group


Local EPrints ID: 335078
ISSN: 0921-5093
PURE UUID: 93b11ea6-23b8-47f3-83d9-d69b0a920773
ORCID for Terence G. Langdon: ORCID iD

Catalogue record

Date deposited: 14 Mar 2012 09:02
Last modified: 18 Jul 2017 06:11

Export record



Author: Megumi Kawasaki
Author: N. Balasubramanian

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.