Evolution of the Microstructure of Al 6082 Alloy during Equal-Channel Angular Pressing

Abstract:

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A commercial Al-Mg-Si alloy (Al 6082) was deformed by Equal-Channel Angular Pressing (ECAP) to produce bulk ultrafine-grained microstructure. The crystallite size distribution and the characteristic parameters of the dislocation structure were investigated by X-ray diffraction profile analysis. It was found that the crystallite size decreased and the dislocation density increased during ECAP deformation. The increase of the yield stress of the alloy was related to the increase of the dislocation density using the Taylor model.

Info:

Periodical:

Materials Science Forum (Volumes 473-474)

Edited by:

J. Gyulai

Pages:

453-458

DOI:

10.4028/www.scientific.net/MSF.473-474.453

Citation:

J. Gubicza et al., "Evolution of the Microstructure of Al 6082 Alloy during Equal-Channel Angular Pressing ", Materials Science Forum, Vols. 473-474, pp. 453-458, 2005

Online since:

January 2005

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Price:

$35.00

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