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Influence of crystal orientation on ECAP of aluminum single crystals

Fukuda, Yukihide, Oh-ishi, Keiichiro, Furukawa, Minoru, Horita, Zenji and Langdon, Terence G. (2006) Influence of crystal orientation on ECAP of aluminum single crystals Materials Science and Engineering: A, 420, (1-2), pp. 79-86. (doi:10.1016/j.msea.2006.01.086).

Record type: Article


A single crystal of high purity aluminum, oriented with the {1 1 1} slip plane and the 1 1 0 slip direction rotated by 20° in a clockwise sense from the theoretical shear plane and the shear direction, was processed by equal-channel angular pressing (ECAP) through a single pass. This configuration was designated the 20° orientation and the results are compared with earlier data obtained on a similar high purity aluminum single crystal in the 0° orientation with the (1 1 1) slip plane and the 1 1 0 slip direction lying parallel to the shear plane and the shear direction. The results show that in both orientations the long axes of the subgrains lie parallel to the slip traces of the primary slip system and the average subgrain widths are 1.3 ?m. However, the shearing characteristics are different because the 0° specimen exhibited a conventional B-type rolling texture whereas the 20° specimen deformed by slip on the primary slip system and this system rotated by 40° in a counter-clockwise sense as the specimen passed through the shear zone of the ECAP die.

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Published date: 2006
Keywords: aluminum, equal-channel angular pressing, severe plastic deformation, single crystals, slip systems
Organisations: Engineering Mats & Surface Engineerg Gp


Local EPrints ID: 43648
ISSN: 0921-5093
PURE UUID: 65b58866-a664-43d3-817b-4c1f9e983669
ORCID for Terence G. Langdon: ORCID iD

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Date deposited: 30 Jan 2007
Last modified: 17 Jul 2017 15:18

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Author: Yukihide Fukuda
Author: Keiichiro Oh-ishi
Author: Minoru Furukawa
Author: Zenji Horita

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