Abstract
The present work, reviews the toughening mechanisms and microstructural analyses of recycled aluminium matrix composites reinforced with γ-alumina and pure recycled copper. This composite was manufactured by sintering and sinter + forging called the combined process. Static compression, 3-point bending, impact (drop-weight) tests were conducted to evaluate mechanical response of the composites. Additionally, wear and creep tests were carried out with a nanoindenter to evaluate wear and time dependent behaviour of this composite. Detailed analyses of microstructure of the composites was performed with Scanning Electron Microscopy (SEM) supported by EDS analyses. The results showed that, the composites have homogeneous structure without porosity and very homogeneous distribution of fine γ-alumina (Al2O3) and copper particles. Sinter + forging process yielded a material that had higher strength, hardness and better resistance to wear. This composite will be targeted for linkage applications where high toughness and high surface damage resistance is required.
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Acknowledgements
This work has been carried out on the frame of research collaboration between Supmeca/Paris-FRANCE and UNICAMP-FEM/CAMPINAS-SP/BRAZIL and Michigan Technical University/Houghton-MI-USA. Authors acknowledge and appreciate so much Dr. G. ZAMBELIS from Airbus-Helicopter-Paris/FR for supplying materials and for technical help. We acknowledge technical staff of Supmeca/Paris, Mr. Christophe BEN BRAHIM and Abdelghani LARBI for mechanical tests and data acquisition system analyses and installation of electronic measurement devices.
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Enginsoy, H.M., Bayraktar, E., Miskioglu, I., Gatamorta, F., Katundi, D. (2021). Design of Copper and γ-Alumina Reinforced Recycled Aluminium Matrix Composites through Sintering + Forging. In: Singh, R.P., Chalivendra, V. (eds) Mechanics of Composite, Hybrid and Multifunctional Materials , Volume 6. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-030-59868-6_11
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