Abstract
In this work, friction stir process (FSP) was performed to enhance the surface properties of the aluminum alloy 5083 by incorporating SiC of 6 μm average size, Al2O3 of 3 μm average size and mixture of SiC/Al2O3 particles in the alloy. Tensile tests, Vickers micro hardness measurements, wear tests, and optical and scanning electron microscopies (SEM) examination were conducted on the surface of Aluminum alloy 5083 to analyze the processed zones of composite samples. Results of tensile tests revealed that ultimate tensile strength of 120 MPa was obtained at 600 rpm. The average hardness increased by 30% with increasing the content of ceramic particles and the maximum hardness values obtained for the hybrid surface composite (50% Al2O3 and 50% SiC) developed by 2 passes FSP and processing parameters of 600 rpm. The addition of ceramic powder (SiC) as a reinforcement into AA5083 improved the wear resistance of the received AA5083 by 40%. Hybrid composite of 50% SiC and 50% Al2O3 exhibited a superior wear resistance compared to the 100% SiC or 100% Al2O3 at a normal load of 20 N.
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The Department of Metallurgical and Materials Engineering at Suez University is acknowledged for carrying out the FSP experiments at the FSW laboratory.
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Zayed, E.M., El-Tayeb, N.S.M., Ahmed, M.M.Z., Rashad, R.M. (2019). Development and Characterization of AA5083 Reinforced with SiC and Al2O3 Particles by Friction Stir Processing. In: Öchsner, A., Altenbach, H. (eds) Engineering Design Applications. Advanced Structured Materials, vol 92. Springer, Cham. https://doi.org/10.1007/978-3-319-79005-3_2
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DOI: https://doi.org/10.1007/978-3-319-79005-3_2
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