Enhancement of Tribological Behaviour of Aa2024 Alloy Reinforced with SiC, Graphite, and Cotton Shell Ash Nanoparticles

The AA2024 alloy, a high-strength aluminum alloy, is widely used in aerospace, automotive, and structural applications due to its excellent mechanical properties and low weight. However, its relatively low wear resistance and susceptibility to tribological challenges under high stress and sliding conditions limit its applications in areas requiring enhanced durability and reliability. To address these limitations, this study focuses on reinforcing AA2024 alloy with silicon carbide (SiC), graphite, and cotton shell ash nanoparticles to improve its tribological behavior. SiC is a widely recognized ceramic material known for its exceptional hardness, thermal stability, and wear resistance, making it an ideal reinforcement for metallic matrices. Graphite, a solid lubricant, is expected to reduce the friction coefficient, thereby enhancing the selflubricating properties of the composite. The incorporation of cotton shell ash nanoparticles, an eco-friendly and sustainable material, introduces a novel approach to leveraging agricultural waste in advanced materials, potentially enhancing mechanical properties and wear resistance due to its unique chemical composition and particle structure. This hybrid reinforcement approach aims to synergize the individual benefits of these materials, improving wear resistance, reducing friction, and enhancing the overall tribological performance of AA2024 alloy. The study will explore the fabrication of the composite material, characterization of its microstructure, and comprehensive tribological testing to evaluate its performance under varying conditions. The findings are expected to provide insights into the potential of hybrid reinforcements in developing advanced, sustainable materials for high-performance applications.