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Evolution of texture in a magnesium alloy processed by ECAP through dies with different angles

Evolution of texture in a magnesium alloy processed by ECAP through dies with different angles
Evolution of texture in a magnesium alloy processed by ECAP through dies with different angles
A fine-grained magnesium ZK60 alloy was used to study texture evolution during processing by equal-channel angular pressing. Experiments were conducted by pressing the alloy through dies having angles of 90°, 110° and 135° and the textures were predicted using a visco-plastic self-consistent model. It is shown that the development of texture depends upon the channel angle within the die.

Calculations indicate that, after basal left angle bracketaright-pointing angle bracket slip, there is significant prismatic left angle bracketaright-pointing angle bracket slip and pyramidal left angle bracketaright-pointing angle bracket slip activity during ECAP in all cases. This is a unique result attributed to the fine grain size and severe plastic deformation. The simulations also reveal evidence of geometrical softening in the first stage of deformation when using dies having channel angles of 90° and 110°.
equal-channel angular pressing, magnesium alloys, slip systems, texture, visco-plastic self-consistent simulations
0921-5093
1709-1718
Figueiredo, Roberto B.
2e0060b8-6368-4d87-825a-c3cb90e92145
Beyerlein, Irene J.
92ba9452-af0f-4835-947c-98a622a69539
Zhilyaev, Alexander P.
13424aa4-7ee2-4f00-a3a7-91ad6dbd1ec8
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Figueiredo, Roberto B.
2e0060b8-6368-4d87-825a-c3cb90e92145
Beyerlein, Irene J.
92ba9452-af0f-4835-947c-98a622a69539
Zhilyaev, Alexander P.
13424aa4-7ee2-4f00-a3a7-91ad6dbd1ec8
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Figueiredo, Roberto B., Beyerlein, Irene J., Zhilyaev, Alexander P. and Langdon, Terence G. (2009) Evolution of texture in a magnesium alloy processed by ECAP through dies with different angles. Materials Science and Engineering: A, 527 (7-8), 1709-1718. (doi:10.1016/j.msea.2009.10.061).

Record type: Article

Abstract

A fine-grained magnesium ZK60 alloy was used to study texture evolution during processing by equal-channel angular pressing. Experiments were conducted by pressing the alloy through dies having angles of 90°, 110° and 135° and the textures were predicted using a visco-plastic self-consistent model. It is shown that the development of texture depends upon the channel angle within the die.

Calculations indicate that, after basal left angle bracketaright-pointing angle bracket slip, there is significant prismatic left angle bracketaright-pointing angle bracket slip and pyramidal left angle bracketaright-pointing angle bracket slip activity during ECAP in all cases. This is a unique result attributed to the fine grain size and severe plastic deformation. The simulations also reveal evidence of geometrical softening in the first stage of deformation when using dies having channel angles of 90° and 110°.

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More information

Published date: 25 March 2009
Keywords: equal-channel angular pressing, magnesium alloys, slip systems, texture, visco-plastic self-consistent simulations
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 154899
URI: https://eprints.soton.ac.uk/id/eprint/154899
ISSN: 0921-5093
PURE UUID: d0343467-862b-4f46-b181-7dbad7cd1164
ORCID for Terence G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 26 May 2010 14:08
Last modified: 06 Jun 2018 12:48

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