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An investigation of the deformation process during equal-channel angular pressing of an aluminum single crystal

Record type: Article

This investigation examines the deformation process when an aluminum single crystal is subjected to equal-channel angular pressing (ECAP) using a die having a channel angle of 90°. The crystal within the entrance channel was oriented so that the {1 1 1} slip plane and the (1 1 0) slip direction were inclined at 20° in a counter-clockwise direction from the theoretical shear plane and the theoretical shear direction. The crystal was pressed through one pass at room temperature and then carefully examined. After passing through the shear plane, it is shown that the initial orientation remains in the upper portion of the specimen within the exit channel but there is a rotation by ~60° in a counter-clockwise direction near the lower die wall. These observations show that shear occurs in the upper portion of the specimen but there is a rotation in the lower portion due to the arc of curvature at the outer point of intersection of the two channels.

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Citation

Furukawa, Minoru, Kawasaki, Yoshiyasu, Miyahara, Yuichi, Horita, Zenji and Langdon, Terence G. (2005) An investigation of the deformation process during equal-channel angular pressing of an aluminum single crystal Materials Science and Engineering: A, 410-411, pp. 194-200. (doi:10.1016/j.msea.2005.08.082).

More information

Published date: 2005
Additional Information: The Langdon Symposium: Flow and forming of Crystalline Materials
Keywords: aluminum single crystal, equal-channel angular pressing, deformation process, slip systems
Organisations: Engineering Sciences

Identifiers

Local EPrints ID: 23819
URI: http://eprints.soton.ac.uk/id/eprint/23819
ISSN: 0921-5093
PURE UUID: 02ed2b92-cea9-4107-90fc-7b813e92e24f
ORCID for Terence G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 21 Mar 2006
Last modified: 17 Jul 2017 16:16

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Contributors

Author: Minoru Furukawa
Author: Yoshiyasu Kawasaki
Author: Yuichi Miyahara
Author: Zenji Horita

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