The University of Southampton
University of Southampton Institutional Repository

Microstructure and properties of a low-carbon steel processed by equal-channel angular pressing

Microstructure and properties of a low-carbon steel processed by equal-channel angular pressing
Microstructure and properties of a low-carbon steel processed by equal-channel angular pressing
An ultrafine-grained low carbon steel (Fe–0.15 wt.% C–0.52 wt.% Mn) was fabricated by equal channel angular pressing (ECAP) at room temperature by pressing for up to a maximum of 10 passes using route C. There was an elongated substructure with a width of ~0.2–0.3 ?m after 10 passes of ECAP and the corresponding tensile strength was >1200 MPa. It is shown that subsequent annealing for 1 h at 773 K, which is below the recrystallization temperature of ferrite, leads to equiaxed grains with a size of ~0.3–0.4 ?m, an increase in the tensile elongation and a strength above 1000 MPa. Annealing for 1 h at 873 K, which is above the recrystallization temperature, gives a recrystallized equiaxed structure of fine grains with an average grain size of ~7 ?m, a strength of <500 MPa and stress–strain curves similar to those anticipated for a low-carbon steel.
equal-channel angular pressing, steel, strength, ultrafine grains
0921-5093
312-315
Wang, Jing Tao
10285b03-ac4f-46d7-b8c9-7a4c0dad72d1
Xu, Cheng
af526865-aee4-4ef6-8174-def5c38149a2
Du, Zhong Ze
61c309cb-677e-44c0-9f16-a1f91c4eed44
Qu, Guo Zhong
2c2fe0f6-5457-4c1c-a827-71af46fa2862
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Wang, Jing Tao
10285b03-ac4f-46d7-b8c9-7a4c0dad72d1
Xu, Cheng
af526865-aee4-4ef6-8174-def5c38149a2
Du, Zhong Ze
61c309cb-677e-44c0-9f16-a1f91c4eed44
Qu, Guo Zhong
2c2fe0f6-5457-4c1c-a827-71af46fa2862
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Wang, Jing Tao, Xu, Cheng, Du, Zhong Ze, Qu, Guo Zhong and Langdon, Terence G. (2005) Microstructure and properties of a low-carbon steel processed by equal-channel angular pressing. Materials Science and Engineering: A, 410-411, 312-315. (doi:10.1016/j.msea.2005.08.111).

Record type: Article

Abstract

An ultrafine-grained low carbon steel (Fe–0.15 wt.% C–0.52 wt.% Mn) was fabricated by equal channel angular pressing (ECAP) at room temperature by pressing for up to a maximum of 10 passes using route C. There was an elongated substructure with a width of ~0.2–0.3 ?m after 10 passes of ECAP and the corresponding tensile strength was >1200 MPa. It is shown that subsequent annealing for 1 h at 773 K, which is below the recrystallization temperature of ferrite, leads to equiaxed grains with a size of ~0.3–0.4 ?m, an increase in the tensile elongation and a strength above 1000 MPa. Annealing for 1 h at 873 K, which is above the recrystallization temperature, gives a recrystallized equiaxed structure of fine grains with an average grain size of ~7 ?m, a strength of <500 MPa and stress–strain curves similar to those anticipated for a low-carbon steel.

This record has no associated files available for download.

More information

Published date: 2005
Additional Information: The Langdon Symposium: Flow and forming of Crystalline Materials
Keywords: equal-channel angular pressing, steel, strength, ultrafine grains
Organisations: Engineering Sciences

Identifiers

Local EPrints ID: 23839
URI: http://eprints.soton.ac.uk/id/eprint/23839
ISSN: 0921-5093
PURE UUID: f5bcf0bf-3b31-4e1c-84c0-0cd725b810c3
ORCID for Terence G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 22 Mar 2006
Last modified: 16 Mar 2024 03:28

Export record

Altmetrics

Contributors

Author: Jing Tao Wang
Author: Cheng Xu
Author: Zhong Ze Du
Author: Guo Zhong Qu

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.

×