The University of Southampton
University of Southampton Institutional Repository

Formation of ultrafine grains and twins in the β-phase during superplastic deformation of two-phase brasses

Formation of ultrafine grains and twins in the β-phase during superplastic deformation of two-phase brasses
Formation of ultrafine grains and twins in the β-phase during superplastic deformation of two-phase brasses
During superplastic deformation of microduplex-structured brasses, the strain is primarily localized in the β-phase where deformation occurs by grain boundary sliding (GBS) and dislocation slip/creep mechanisms. Dynamic recrystallization and twinning were observed in the b.c.c. β-phase leading to a transformation of the initial coarse β-phase grains with average sizes of ~4-5 µm to ultrafine grains with sizes below 1 µm. Alloying with Al refined the β-grains, improved the superplastic behavior and reduced the occurrence of residual cavitation.
brass; deformation mechanisms; grain boundary sliding; superplasticity; twinning, Superplasticity, Brass, Grain boundary sliding, Twinning, Dynamic recrystallization
1359-6462
Mikhaylovskaya, Anastasia
c83b7a58-e12e-45ed-8bab-757760d3e294
Yakovtseva, Olga
96bc1e3c-e884-4d86-9a32-95b65d8f8aa7
Tabachkova, Natalia
9fbde4d4-49bf-4f0e-ad9e-aca9ca948580
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Mikhaylovskaya, Anastasia
c83b7a58-e12e-45ed-8bab-757760d3e294
Yakovtseva, Olga
96bc1e3c-e884-4d86-9a32-95b65d8f8aa7
Tabachkova, Natalia
9fbde4d4-49bf-4f0e-ad9e-aca9ca948580
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Mikhaylovskaya, Anastasia, Yakovtseva, Olga, Tabachkova, Natalia and Langdon, Terence G. (2022) Formation of ultrafine grains and twins in the β-phase during superplastic deformation of two-phase brasses. Scripta Materialia, 218, [114804]. (doi:10.1016/j.scriptamat.2022.114804).

Record type: Article

Abstract

During superplastic deformation of microduplex-structured brasses, the strain is primarily localized in the β-phase where deformation occurs by grain boundary sliding (GBS) and dislocation slip/creep mechanisms. Dynamic recrystallization and twinning were observed in the b.c.c. β-phase leading to a transformation of the initial coarse β-phase grains with average sizes of ~4-5 µm to ultrafine grains with sizes below 1 µm. Alloying with Al refined the β-grains, improved the superplastic behavior and reduced the occurrence of residual cavitation.

Text
Anastasia Mikhaylovskaya_manuscript-TGL - Accepted Manuscript
Download (59kB)
Text
Anastasia Mikhaylovskaya_Figures -TGL - Accepted Manuscript
Download (2MB)

More information

Accepted/In Press date: 8 May 2022
e-pub ahead of print date: 19 May 2022
Published date: September 2022
Additional Information: Funding Information: One of the authors was supported by the European Research Council under ERC Grant Agreement No. 267464 -SPDMETALS (TGL). Several authors were supported by Ministry of Science and Higher Education of RF in a framework of State Task to Universities Project No. 0718-2020-0030 (MAV and OAY). TEM was studied in a Collective Using Center of NUST MISIS “Material Science and Metallurgy” supported by Ministry of Science and Higher Education of RF Project No. 075-15-2021-696 (NYuT). Publisher Copyright: © 2022 Acta Materialia Inc.
Keywords: brass; deformation mechanisms; grain boundary sliding; superplasticity; twinning, Superplasticity, Brass, Grain boundary sliding, Twinning, Dynamic recrystallization

Identifiers

Local EPrints ID: 469715
URI: http://eprints.soton.ac.uk/id/eprint/469715
ISSN: 1359-6462
PURE UUID: 321f4a68-5bbc-482f-9d25-c5e30973a33a
ORCID for Terence G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 22 Sep 2022 16:51
Last modified: 06 Jun 2024 04:14

Export record

Altmetrics

Contributors

Author: Anastasia Mikhaylovskaya
Author: Olga Yakovtseva
Author: Natalia Tabachkova

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.

×