TITLE:
Development and Characterization of Aluminium-Based Metal Matrix Composites
AUTHORS:
M. A. Gafur, Al Fahad Ahmed, Raisul Abrar, Surya Sabrin Soshi
KEYWORDS:
Al, AA-6061, AA-4032, SiC, Al2O3, Stir-Casting, Metal Matrix Composite, MMC, Nanocomposites
JOURNAL NAME:
Materials Sciences and Applications,
Vol.14 No.1,
January
29,
2023
ABSTRACT: Aluminum based metal matrix composites were fabricated using stir casting where silicon carbide and alumina were the reinforcements. Different types of properties (physical-density, mechanical-tensile, hardness, chemical-corrosion etc.) were measured and compared with base metals/alloys. The properties were significantly varied. The highest density was obtained for pure aluminium with 5% Al2O3 whereas the lowest was obtained for AA-4032 alloy. The highest hardness was obtained for AA-4032 with 5% Al2O3 whereas the lowest was obtained for pure Al with 5% Al2O3. The highest strength was obtained for AA-6061 with 5% coarse SiC whereas the lowest was obtained for pure Al. The highest impact strength was obtained for AA-4032 with 5% Al2O3 whereas the lowest was obtained for AA-6061. The corrosion resistance of all composites was lower than that of the base materials.