Recrystallization Behavior of Twin-Roll Cast 3xxx Series Aluminum Alloy

Abstract:

Twin roll casting (TRC) is an efficient process used to produce thin plates directly from molten metal. However, TRC has a much higher cooling rate during solidification compared with conventional direct chill casting. Accordingly, the constituent phases are refined and the added elements are supersaturated by this casting method. Supersaturation of the added elements hinders both recovery and recrystallization because fine dispersoids precipitate from the supersaturated solid solution during annealing [ and coarsen the grain size of the final plate, which leads to degradation of formability. Therefore, it is important to understand the influence of the solute element and dispersoids on recrystallization behavior to obtain an appropriate grain structure for forming. In this study, the effects of the homogenization conditions and cold rolling reduction on the recrystallization behavior of twin-roll cast 3XXX series aluminum alloy were investigated.

• Periodical: Materials Science Forum (Volumes 794-796)
• Pages: 1257-1262
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.794-796.1257
• Online since: June 2014
• Authors: Michihide Yoshino*, Shohei Iwao, Masakazu Edo
• Keywords: 3xxx Series Al Alloy, Dispersoid, PSN, Recrystallization, TRC

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