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Evaluation of grain refinement and variation in mechanical properties of equal-channel angular pressed 2014 aluminum alloy

✍ Scribed by C. Mallikarjuna; S.M. Shashidhara; U.S. Mallik

Publisher: Elsevier Science
Year: 2009
Weight: 460 KB
Volume: 30
Category: Article
ISSN: 0261-3069
DOI: 10.1016/j.matdes.2008.07.036

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✦ Synopsis

Grain refinement and improvement in mechanical properties of 2014 aluminum alloy was obtained by equal-channel angular pressing (ECAP) technique. Well-defined grain boundaries were obtained in the ECAP processed alloy and a grain size reduction of around 94% can be obtained. Tensile testing after ECAP through three passes exhibits a significant increase in the yield strength and the ultimate tensile strength of the alloy with a corresponding increase in the percentage elongation. A significant increase in the microhardness was also observed in this processed alloy. The results of ECAP processed 2014 aluminum alloy have a good agreement with the standard Hall-Petch relationship.

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