Texture Evolution in Invar® Deformed by Asymmetrical Rolling

Abstract:

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Asymmetrical rolling, in which the circumferential velocities of the working rolls are different, is a method to impose shear deformation and in turn shear deformation texture to sheet through the thickness. The Invar® alloy has been deformed by asymmetrical rolling with a 84% thickness reduction. The texture of the deformed and annealed alloy was measured by X-ray diffraction at different levels through the thickness: upper side- middle- down side, with unidirectional rolling. The deformed texture is a copper type texture but the components were rotated about 5-7° around the Transverse Direction (TD) axis as compared to the ideal position of these components in the pole figure representation. During recrystallization, the rolling components (brass {011}<112>,copper {112}<111>, aluminum {123}<634>) decrease quickly whereas the cube component {001}<100> is preferentially developed after a short annealing time. However, the rolling components do not disappear completely after complete recrystallization (120 minutes annealing). As a consequence the final texture contains a high cube component and rolling components.

Info:

Periodical:

Edited by:

P. B. Prangnell and P. S. Bate

Pages:

551-556

DOI:

10.4028/www.scientific.net/MSF.550.551

Citation:

S. Chhann et al., "Texture Evolution in Invar® Deformed by Asymmetrical Rolling", Materials Science Forum, Vol. 550, pp. 551-556, 2007

Online since:

July 2007

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Price:

$35.00

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