The University of Southampton
University of Southampton Institutional Repository

The evolution of homogeneity during processing of commercial purity aluminium by ECAP

Alhajeri, Saleh N., Kawasaki, M., Gao, N. and Langdon, T G (2011) The evolution of homogeneity during processing of commercial purity aluminium by ECAP Materials Science Forum, 584-586, pp. 446-451. (doi:10.4028/

Record type: Article


Billets of a commercial purity aluminium Al-1050 alloy were processed by equal-channel angular pressing (ECAP) for up to a maximum of 6 passes. Following processing, the billets were sectioned and hardness measurements were recorded on both longitudinal and transverse sections. These measurements showed the hardness increases significantly in the first pass and continues to increase by small amounts in subsequent passes. Initially, there are regions of lower hardness running in bands near the top and bottom surface of each billet. The region of lower hardness near the upper surface disappears with increasing numbers of passes but near the bottom surface the lower hardness remains even after 6 passes. The results show that, neglecting the small region near the bottom of the billet, there is an excellent potential for achieving microstructural homogeneity within the Al-1050 alloy after pressing through a sufficient number of passes in ECAP.

PDF Mat_Sci_Fourm_584-2008-446_Saleh.pdf - Accepted Manuscript
Download (326kB)

More information

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


Local EPrints ID: 187539
ISSN: 1662-9752
PURE UUID: f0381dc9-5abb-40e1-bb09-74af0830ba6b
ORCID for T G Langdon: ORCID iD

Catalogue record

Date deposited: 17 May 2011 12:58
Last modified: 18 Jul 2017 11:45

Export record



Author: Saleh N. Alhajeri
Author: M. Kawasaki
Author: N. Gao
Author: T G Langdon ORCID iD

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.