An Investigation of Deformation in Copper Single Crystals Using Equal-Channel Angular Pressing

Abstract:

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This paper describes experiments in which high purity copper single crystals of two different orientations were processed for one pass by equal-channel angular pressing (ECAP) and the deformed structures were examined using optical microscopy (OM), orientation imaging microscopy (OIM) and transmission electron microscopy (TEM). The first single crystal (0° specimen) was oriented within the entrance channel of the die so that the {111} slip plane and the <110> slip direction were parallel to the theoretical shear plane and shear direction, respectively. The second crystal (20° specimen) was oriented with the {111} slip plane and the <110> slip direction rotated by 20° in a clockwise sense from the theoretical shear plane and shear direction, respectively. For the 0° specimen, after passing through the shear plane there were two crystallographic orientations representing the initial orientation and an orientation rotated by 60° in a counter-clockwise sense from the initial orientation. For the 20° specimen, there was an orientation rotated by 20° in a counter-clockwise sense from the initial orientation after passing through the shear plane.

Info:

Periodical:

Materials Science Forum (Volumes 503-504)

Edited by:

Zenji Horita

Pages:

113-118

DOI:

10.4028/www.scientific.net/MSF.503-504.113

Citation:

M. Furukawa et al., "An Investigation of Deformation in Copper Single Crystals Using Equal-Channel Angular Pressing", Materials Science Forum, Vols. 503-504, pp. 113-118, 2006

Online since:

January 2006

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Price:

$35.00

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