The University of Southampton
University of Southampton Institutional Repository

Microstructural evolution of Mg-4%Nd alloy processed by high-pressure torsion

Record type: Article

Disks of as-extruded Mg-4Nd alloy were processed by high-pressure torsion (HPT) through ¼ to 5 turns at room temperature. The first 1/4 turn of HPT induces large numbers of twins and some dislocation tangles in the center region of the disk. With increase of torsional straining, the twinning is inhibited gradually and the dislocation density increases relating to the formation of dislocation substructures and ultimately transforming to high fractions of equiaxed gains which have an average grain size of ~200 nm and high-angle boundaries. HPT significantly improves the values of microhardness of this alloy. The hardness values in both the central and edge regions show a sharp rise after HPT for 1/4 turn and exhibit nearly saturation after 1/2 turn although there is a trend of a slight increase with increasing numbers of turns. The experimental results suggest more homogeneous microstructures may be produced by larger numbers of turns in the HPT process.

Full text not available from this repository.

Citation

Bai, J., Xue, F., Alhajeri, Saleh N. and Langdon, Terence G. (2011) Microstructural evolution of Mg-4%Nd alloy processed by high-pressure torsion Materials Science Forum, 667-669, pp. 391-396. (doi:10.4028/www.scientific.net/MSF).

More information

Published date: 2011
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 187543
URI: http://eprints.soton.ac.uk/id/eprint/187543
ISSN: 1662-9752
PURE UUID: 174230c2-7df5-46dc-99a9-7d335857aaec
ORCID for Terence G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 17 May 2011 13:17
Last modified: 18 Jul 2017 11:44

Export record

Altmetrics

Contributors

Author: J. Bai
Author: F. Xue
Author: Saleh N. Alhajeri

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.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

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.

×