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Microstructure and mechanical properties of Al-1050 during incremental ECAP

Salamati, M and Tamimi, S and Moturu, S and Sivaswamy, G and Qarni, M and Rosochowski, A (2017) Microstructure and mechanical properties of Al-1050 during incremental ECAP. IOP Conference Series: Materials Science and Engineering, 194. ISSN 1757-899X

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Incremental ECAP is a new method of ECAP process were the severe shear deformation is incrementally applied on the sample resulting in grain refining and new texture developing. The fundamental objective of the present work is an observation of effect of different passes of I-ECAP on microstructure and mechanical properties of AA1050 billet. To that end, 8 pass of I-ECAP have been carried out using Bc route and microstructure evolution and mechanical properties of the I-ECAPed samples have been studied. The EBSD and TEM analyses indicates that I-ECAP is as capable as conventional ECAP to grain refinements and a UFG structure is resulted after I-ECAP cycles. Tensile testing and hardness measurements indicates that mechanical properties of the Al-1050 billets increases dramatically by increasing the I-ECAP passes.