Effect of ECAP on Mechanical Properties of an AA2014 Alloy

Abstract:

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An AA2014 alloy was subjected to equal channel angular pressing in quenched condition up to fixed true strains of 1, 2 at a temperature of 170oC followed by artificial aging at the similar temperature. ECAP provides accumulation of a high dislocation density after a true strain of 1 and the formation of subgrain structure and separate chains of nanoscale grains after a true strain of 2. Yield stress (460 MPa) of the AA2014 alloy after 1 and 2 passes was the same. In contrast, increasing strain from 1 to 2 leads to three-fold increase in ductility.

Info:

Periodical:

Materials Science Forum (Volumes 667-669)

Edited by:

Jing Tao Wang, Roberto B. Figueiredo and Terence G. Langdon

Pages:

931-936

DOI:

10.4028/www.scientific.net/MSF.667-669.931

Citation:

R. Kaibyshev and A. Mogucheva, "Effect of ECAP on Mechanical Properties of an AA2014 Alloy", Materials Science Forum, Vols. 667-669, pp. 931-936, 2011

Online since:

December 2010

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Price:

$35.00

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