The Mechanical Performance of ARB Fabricated Hybrid Lamellar Composite of Recovered/Recrystallized Al and Precipitation Hardened Al(Sc) Layers

Abstract:

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Sheets of commercial purity aluminum and super saturated solid solution of 0.3% Sc were accumulatively roll bonded to form 64 alternating layers in a 0.5 mm thickness. The rolling was done at 350 °C to ensure dynamic recovery/recrystallization in Al layers and precipitation hardening of Al(Sc) layers during the rolling. The sheet crystallographic texture was distributed along β fibre orientations. The recrystallization texture of aluminum layers after annealed at 250-350 °C was randomly distributed. The tensile property of this novel composite has achieved a small improvement over the commercially available grades and delamination between the layers was identified as the key issue to improve in this fabrication technique.

Info:

Periodical:

Materials Science Forum (Volumes 667-669)

Edited by:

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

Pages:

481-486

DOI:

10.4028/www.scientific.net/MSF.667-669.481

Citation:

M. Z. Quadir et al., "The Mechanical Performance of ARB Fabricated Hybrid Lamellar Composite of Recovered/Recrystallized Al and Precipitation Hardened Al(Sc) Layers", Materials Science Forum, Vols. 667-669, pp. 481-486, 2011

Online since:

December 2010

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$35.00

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