A Study on Mechanical and Tribological Properties of Aluminum 7068 MMCS Reinforced with Silicon Carbide and Biochar by Stir Casting Process

Abstract

The present study focuses on the development and characterization of Aluminum 7068 metal matrix composites (MMCs) reinforced with Silicon Carbide (SiC) and Biochar using the powder metallurgy process. Aluminum 7068, known for its high strength-to-weight ratio, was selected as the base material, while SiC was introduced to enhance hardness and wear resistance, and Biochar was added as a sustainable reinforcement to improve mechanical and tribological behavior. The fabricated composites were subjected to microstructural analysis, hardness testing, tensile strength evaluation, and wear studies. Results are expected to demonstrate improved hardness, strength, and wear resistance with the hybrid reinforcement, highlighting the potential of combining SiC and Biochar as effective reinforcements. This study contributes to developing lightweight, eco-friendly, and high-performance materials for aerospace, defense, and automotive applications.