Özer E.Ayvaz M.2024-07-222024-07-22202400255300http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/11550This study aimed to produce hybrid composites with a AA2024 matrix reinforced by TiC/B4C/nano-graphite through a microwave-assisted sintering technique at 560 °C for 60 min. The nano-graphite ratio in the produced composite samples was kept constant as 1 wt.%. TiC and B4C were used in equal ratios at 2, 6 and 10 % by weight total to determine their effects on tribological properties. Wear tests were conducted under three different loads: 3, 5 and 10 N. In the hybrid composites produced, an inverse correlation was observed between the increase in reinforcement ratio and sinterability, while a direct correlation relationship was found in hardness and wear resistance. Compared to the sample containing 2 % TiC/B4C in total by weight, a ∼50 % increase in Brinell hardness and a 52-68 % decrease in wear rate was obtained in the sample containing 10 % TiC/B4C. As the reinforcement ratio increased, tribofilm formation increased, and abrasive wear was replaced by mildoxidative wear type. © 2024 Carl Hanser Verlag. All rights reserved.EnglishBoron carbideGraphiteHybrid compositesMatrix algebraMetallic matrix compositesReinforcementSinteringTribologyWear of materialsWear resistance'Dry' [Aa2024Graphite particlesHybrid compositesmatrixMatrix hybridsMicrowave-assistedNano-graphiteReinforcement ratiosTribological behaviourTitanium carbideArticle10.1515/mt-2023-0248