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Texture evolution in an Al-Cu alloy during equal channel angular pressing: the effect of starting microstructure

Venkatachalam, P and Roy, Shibayan and Ravisankar, B and Paul, Thomas V and Vijayalakshmi, M and Suwas, Satyam (2011) Texture evolution in an Al-Cu alloy during equal channel angular pressing: the effect of starting microstructure. In: Journal of Materials Science (full set), 46 (20). pp. 6518-6527.

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Abstract

In this article, the effect of initial microstructure on the texture evolution in 2014 Al alloy during equal channel angular pressing (ECAP) through route A has been reported. Three heat treatment conditions were chosen to generate the initial microstructures, namely (i) the recrystallization anneal (as-received), (ii) solution treatment at 768 K for 1 h, and (iii) solution treatment (768 K for 1 h) plus aging at 468 K for 5 h. Texture analyses were performed using orientation distribution function (ODF) method. The texture strength after ECAP processing was different for the three samples in the order, solutionised > solutionised plus aged condition > as-received. The prominent texture components were A (E) /(A) over bar (E) and B(E)/(B) over bar (E) in addition to several weaker components for the three materials. The strong texture evolution in solutionised condition has been attributed to higher strain hardening of the matrix due to higher amount of solute. In case of the as-received as well as solutionised plus aged alloy, the weaker texture could be due to the strain scattering from extensive precipitate fragmentation and dissolution during ECAP.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Springer.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 30 Aug 2011 06:24
Last Modified: 30 Aug 2011 06:24
URI: http://eprints.iisc.ernet.in/id/eprint/39940

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