Abstract
In this paper, flake powder metallurgy technique is described for fabricating near-net-shape SiC nanoparticle-reinforced Al2024 matrix composites. The effect of the particle size on the flake Al2024 matrix powders and the amount of SiC nanoparticles in the particle distribution, microstructure, relative density, and hardness of SiC nanoparticle-reinforced Al2024 matrix composites were investigated. The flake Al2024 matrix powders were mixed with three different as-received Al2024 powders particle sizes by ball milling. Microstructural characterization revealed a flake-like microstructure and dispersed SiC nanoparticles between the Al2024 matrix powders with grain boundaries containing sufficient area for the reinforcement particles. The hot pressed density increased as the matrix size decreased due to the small frictional forces observed between the fine flake particles. The hardness of Al2024/SiC nanocomposites increased as the size of the Al2024 matrix powders decreased.
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Varol, T., Canakci, A. & Yalcin, E.D. Fabrication of NanoSiC-Reinforced Al2024 Matrix Composites by a Novel Production Method. Arab J Sci Eng 42, 1751–1764 (2017). https://doi.org/10.1007/s13369-016-2295-z
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DOI: https://doi.org/10.1007/s13369-016-2295-z