The University of Southampton
University of Southampton Institutional Repository

Influence of high-pressure torsion on microstructural evolution in an Al–Zn–Mg–Cu alloy

Influence of high-pressure torsion on microstructural evolution in an Al–Zn–Mg–Cu alloy
Influence of high-pressure torsion on microstructural evolution in an Al–Zn–Mg–Cu alloy
A commercial age-hardenable Al-7136 alloy was successfully processed by high-pressure torsion (HPT) at room temperature through 1/8 to 4 turns. Microhardness measurements showed significant hardening even after 1/8 turn with the average hardness value reaching a maximum after 1 turn and then slowly decreasing. Higher hardness values were attained by processing the alloy through one pass of equal-channel angular pressing in a supersaturated condition at room temperature and then applying HPT for 1 or 2 turns. Microstructural observations revealed the possibility of achieving true nanometer grain sizes of <100 nm after processing at room temperature. There were variations in hardness with imposed strain due to the fragmentation and subsequent growth of precipitates during processing.
0022-2461
4621-4631
Duan, Zhi C.
de4b42a9-bf9b-403b-bf0b-a52310a8998b
Liao, Xiao Z.
14a06fe7-9bdf-4833-aadf-2f9bd5ac94fc
Kawasaki,, Megumi
944ba471-eb78-46db-bfb7-3f0296d9ef6d
Figueiredo, Roberto B.
2e0060b8-6368-4d87-825a-c3cb90e92145
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Duan, Zhi C.
de4b42a9-bf9b-403b-bf0b-a52310a8998b
Liao, Xiao Z.
14a06fe7-9bdf-4833-aadf-2f9bd5ac94fc
Kawasaki,, Megumi
944ba471-eb78-46db-bfb7-3f0296d9ef6d
Figueiredo, Roberto B.
2e0060b8-6368-4d87-825a-c3cb90e92145
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Duan, Zhi C., Liao, Xiao Z., Kawasaki,, Megumi, Figueiredo, Roberto B. and Langdon, Terence G. (2010) Influence of high-pressure torsion on microstructural evolution in an Al–Zn–Mg–Cu alloy. Journal of Materials Science, 45 (17), 4621-4631. (doi:10.1007/s10853-010-4400-0).

Record type: Article

Abstract

A commercial age-hardenable Al-7136 alloy was successfully processed by high-pressure torsion (HPT) at room temperature through 1/8 to 4 turns. Microhardness measurements showed significant hardening even after 1/8 turn with the average hardness value reaching a maximum after 1 turn and then slowly decreasing. Higher hardness values were attained by processing the alloy through one pass of equal-channel angular pressing in a supersaturated condition at room temperature and then applying HPT for 1 or 2 turns. Microstructural observations revealed the possibility of achieving true nanometer grain sizes of <100 nm after processing at room temperature. There were variations in hardness with imposed strain due to the fragmentation and subsequent growth of precipitates during processing.

This record has no associated files available for download.

More information

Published date: 2010
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 170697
URI: http://eprints.soton.ac.uk/id/eprint/170697
ISSN: 0022-2461
PURE UUID: 96be2369-aa72-43d8-8a02-f9e304cdf643
ORCID for Terence G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 11 Jan 2011 11:36
Last modified: 14 Mar 2024 02:47

Export record

Altmetrics

Contributors

Author: Zhi C. Duan
Author: Xiao Z. Liao
Author: Megumi Kawasaki,
Author: Roberto B. Figueiredo

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.

×