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Texture evolution by shear on two planes during ECAP of a high strength aluminium alloy

Wang, S.C., Starink, M.J., Gao, N., Qiao, X., Xu, C. and Langdon, T.G. (2008) Texture evolution by shear on two planes during ECAP of a high strength aluminium alloy Acta Materialia, 56, (15), pp. 3800-3809. (doi:10.1016/j.actamat.2008.04.022).

Record type: Article

Abstract

The evolution of texture was examined during equal-channel angular pressing (ECAP) of an Al-Zn-Mg-Cu alloy having a strong initial texture. An analysis of the local texture using electron back-scatter diffraction demonstrates that shear occurs on two shear planes: the main shear plane (MSP) equivalent to the simple shear plane, and a secondary shear plane which is perpendicular to the MSP. Throughout most regions of the ECAP billet, the MSP is close to the intersection plane of the two channels but with a small (5?) deviation. Only the {111}<110> and {001}<110> shear systems were activated and there was no experimental evidence for the existence of other shear systems. In a small region at the bottom edge of the billet that passed through the zone of intersection of the channels, the observed textures were fully consistent with the rolling textures of Copper and Goss.

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Published date: 2008
Keywords: aluminum alloy, electron backscatter diffraction, equal-channel angular pressing, shear planes, texture
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 50844
URI: http://eprints.soton.ac.uk/id/eprint/50844
ISSN: 1359-6454
PURE UUID: a1dd023b-7028-4052-ae83-d4a56d3d8752
ORCID for T.G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 08 Apr 2008
Last modified: 17 Jul 2017 14:50

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Contributors

Author: S.C. Wang
Author: M.J. Starink
Author: N. Gao
Author: X. Qiao
Author: C. Xu
Author: T.G. Langdon ORCID iD

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