Papers by Author: S. Sarkar

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Authors: S. Sarkar, Mary A. Wells, Warren J. Poole
Abstract: An investigation was conducted on the softening behaviour of cold rolled continuous cast (CC) AA5754 Al alloy and compared to the results for the ingot cast (IC) material. The present study suggests that the CC material exhibits greater resistance to softening as compared to the IC AA5754 for the same amount of cold deformation. The differences in the softening kinetics become more noticeable with increasing level of cold deformation and from a processing point of view can be attributed to the absence of the homogenization stage during the processing of the CC material. Resistivity measurements were carried out during the annealing treatment of the CC materials to examine the possibility of concurrent precipitation, which could potentially retard the softening kinetics for these materials. In addition, the current research reveals that the CC material produces a finer recrystallized grain size as compared to the IC material.
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