The University of Southampton
University of Southampton Institutional Repository

Effect of grain size on the competition between twinning and detwinning in nanocrystalline metals

Effect of grain size on the competition between twinning and detwinning in nanocrystalline metals
Effect of grain size on the competition between twinning and detwinning in nanocrystalline metals
Both twinning and detwinning have been reported to occur during the deformation of nanocrystalline (nc) face-centered-cubic metals. This raises the issue of how these two processes compete with each other. Here, we report that the twinning process dominates in a certain range of grain sizes, whereas, the detwinning process dominates outside of this range to annihilate all twins. These experimental observations establish a full spectrum of grain-size effects on deformation twinning and detwinning and are explained by the deformation physics. They also provide a fundamental basis for understanding and designing the mechanical behavior of nc metals and alloys
1550-235X
235401-[4pp]
Ni, S.
c17ef5a0-a786-46ea-8c68-2cddc3c6a9fc
Wang, Y.
23c775f0-3cac-44d5-9e16-2098959c493b
Liao, X.
2c4970a1-fceb-4ab2-8ff5-3df0baae4726
Li, H.
e6f231b5-28cd-425f-b136-55ceab5d00db
Figueiredo, R.
43309231-e9a2-435b-b175-4200b139c945
Ringer, S.
4ff058a6-b0a2-401c-b31d-6abefe8735d6
Langdon, T.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Zhu, Y.
825b29a7-35e8-4f51-a31c-87c71f0a06bb
Ni, S.
c17ef5a0-a786-46ea-8c68-2cddc3c6a9fc
Wang, Y.
23c775f0-3cac-44d5-9e16-2098959c493b
Liao, X.
2c4970a1-fceb-4ab2-8ff5-3df0baae4726
Li, H.
e6f231b5-28cd-425f-b136-55ceab5d00db
Figueiredo, R.
43309231-e9a2-435b-b175-4200b139c945
Ringer, S.
4ff058a6-b0a2-401c-b31d-6abefe8735d6
Langdon, T.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Zhu, Y.
825b29a7-35e8-4f51-a31c-87c71f0a06bb

Ni, S., Wang, Y., Liao, X., Li, H., Figueiredo, R., Ringer, S., Langdon, T. and Zhu, Y. (2011) Effect of grain size on the competition between twinning and detwinning in nanocrystalline metals. Physical Review B, 84 (23), 235401-[4pp]. (doi:10.1103/PhysRevB.84.235401).

Record type: Article

Abstract

Both twinning and detwinning have been reported to occur during the deformation of nanocrystalline (nc) face-centered-cubic metals. This raises the issue of how these two processes compete with each other. Here, we report that the twinning process dominates in a certain range of grain sizes, whereas, the detwinning process dominates outside of this range to annihilate all twins. These experimental observations establish a full spectrum of grain-size effects on deformation twinning and detwinning and are explained by the deformation physics. They also provide a fundamental basis for understanding and designing the mechanical behavior of nc metals and alloys

This record has no associated files available for download.

More information

Published date: December 2011
Organisations: Engineering Science Unit

Identifiers

Local EPrints ID: 337563
URI: http://eprints.soton.ac.uk/id/eprint/337563
ISSN: 1550-235X
PURE UUID: 6b9799f8-f398-4198-8bc9-40261f5a2c4a
ORCID for T. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 27 Apr 2012 13:33
Last modified: 15 Mar 2024 03:13

Export record

Altmetrics

Contributors

Author: S. Ni
Author: Y. Wang
Author: X. Liao
Author: H. Li
Author: R. Figueiredo
Author: S. Ringer
Author: T. Langdon ORCID iD
Author: Y. Zhu

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.

×