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The potential for scaling ECAP: effect of sample size on grain refinement and mechanical properties

Horita, Z., Fujinami, T. and Langdon, T.G. (2001) The potential for scaling ECAP: effect of sample size on grain refinement and mechanical properties Materials Science and Engineering: A, 318, (1-2), pp. 34-41. (doi:10.1016/S0921-5093(01)01339-9).

Record type: Article

Abstract

The potential for scaling equal-channel angular pressing (ECAP) for use with large samples was investigated by conducting tests on an aluminum alloy using cylinders having diameters from 6–40 mm. The results show the refinement of the microstructure and the subsequent mechanical properties after pressing are independent of the initial size of the sample and, for the largest sample with a diameter of 40 mm, independent of the location within the sample at least to a distance of 5 mm from the sample edge. By making direct measurements of the imposed load during ECAP, it is shown that the applied load is determined by the sample strength rather than frictional effects between the sample and the die walls. The results demonstrate the feasibility of scaling ECAP to large sizes for use in industrial applications.

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More information

Published date: 2001
Keywords: aluminum alloys, equal-channel angular pressing, mechanical properties, severe plastic deformation, ultrafine grains sizes
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 23402
URI: http://eprints.soton.ac.uk/id/eprint/23402
ISSN: 0921-5093
PURE UUID: 8834acfe-d2e2-4f82-8216-a7c096d44c32
ORCID for T.G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 23 Mar 2006
Last modified: 17 Jul 2017 16:17

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Contributors

Author: Z. Horita
Author: T. Fujinami
Author: T.G. Langdon ORCID iD

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