In this work, accumulative roll bonding (ARB) process as a severe plastic deformation was applied on an AA5083 sheet up to 6 cycles at the temperature of 300℃ and at the strain rate of 50 s‐1. The results of tensile tests show that the values of the yield stress and the ultimate tensile strength don't change considerably after 4 cycles. Also, transmission electron microscopy (TEM) micrograph confirmed that the microstructure has fine (sub) grains with the size of 200 nm - 400 nm.
P. B. Prangnell, J. R. Bowen and A. Gholinia, “The Formation of Submicron and Nanocrystalline Grain Structure by Severe Deformation,” Proceedings of the 22nd Ris?′ International Symposium on Materials Science, Roskilde, 2001, pp. 105-126.
Y. S. Kim, S. H. Kang and D. H. Shin, “Effect of Rolling Direction on the Microstructure and Mechanical Properties of Accumulative Roll-Bonding (ARB) Processed Commercially Pure 1050 Aluminum Alloy,” Materials Science Forum, Vol. 503-504, 2006, pp. 681-686.
K. F. Zhang and H. H. Yan, “Deformation Behavior of Fine-Grained 5083 Al Alloy at Elevated Temperature,” Transactions of Non-ferrous Metals Society of China,Vol. 19, 2009, pp. 307-311.
J. Lee and H. Seok, “Microstructural Evolutions of the Al strip Prepared by Cold Rolling and Continuous Equal Channel Angular Pressing,” Acta Materialia, Vol. 50, 2002, pp. 4005-4019.
R. K. Islamgaliev, N. F. Yunusova, R. Z. Valiev, N. K. Tsenev, V. N. Perevezent-sev and T. G. Langdon, “Characteristics of Superplasticity in an Ultrafine-Grained Aluminum Alloy Processed by ECA Pressing,” Scripta Materialia, Vol. 49, 2003, pp. 467-472.
Y. Saito, H. Utsu-nomiya, N. Tsuji and T. Sakai, “Novel Ultra-High Straining Process for Bulk Materials Development of the Accumulative Roll-Bonding (ARB) Process,” Acta Materialia, Vol. 47, 1999, pp. 579-583.
N. Tsuji, Y. Saito, S. H. Lee and Y. Minamino, “ARB (Accumulative Roll-Bonding) and Other New Techniques to Produce Bulk Ultrafine Grained Materials,” Advanced Engineering Materials, Vol. 5, 2003, pp. 338-344.
X. Huang, N. Tsuji, N. Hansen and Y. Minamino, “Mi Crostructural Evolution During Accumulative Roll-Bond- ing of Commercial Purity Alumi-num,” Materials Science and Engineering: A, Vol. 340, 2003, pp. 265-271.
K. T. Park, J. H. Park, Y. S. Lee and W. J. Nam, “Comparison of Compressive Deformation of Ultrafine-Grain- ed 5083 Al Alloy at 77 and 298 K,” Metallurgical and Materials Transactions: A, Vol. 36, 2005, pp. 1365-1368.
K. T. Park, H. J. Kwon and W. J. Kim, “Microstructural Characteristics and Thermal Stability of Ultrafine Grained 6061 Al Alloy Fabricated by Accumulative Roll Bonding Process,” Materials Science and Engineering: A, Vol. 316, 2001, pp. 145-152.
K. T. Park, J. H. Park, Y. S. Lee and W. J. Nam, “Microstructures Developed by Compressive Deformation of Coarse Grained and Ultrafine Grained 5083 Al Alloys at 77 K and 298 K,” Materials Science and Engineering: A, Vol. 408, 2005, pp. 102-109.