Magnesium Alloy Hybrid Composite Properties are Featured with Boron Carbide Particle for Automotive Seat Frame Usage

With the advancement of lightweight magnesium-based hybrid composites, are potential for weight management applications. The liquid state stir cast process is the best way to produce complex shapes and most industries are preferred. However, the melting of magnesium alloy and achieving homogenous particle distribution are the major challenges for the conventional stir-casting process, and hot crack formation is spotted due to thermal variations. The main objectives of the present research are to enhance the microstructural and mechanical behaviour of magnesium alloy hybrid nanocomposite (AZ91E) adopted with boron carbide (B₄C) and alumina (Al₂O₃) nanoparticles through a semisolid stir cast technique associated with inert atmosphere helps to limits the oxide formation and reduce risk of magnesium fire. The effect of composite processing and multiple reinforcements on surface morphology, tensile strength, impact strength, and hardness were thoroughly evaluated and compared. The results of surface morphology studies demonstrate homogeneous particle dispersion with reduced casting defects. Furthermore, the AZ91E alloy hybrid nanocomposite (HNC) exhibits superior tensile strength, impact strength, and hardness when compared to the monolithic AZ91E alloy, showcasing improvements of 18%, 23%, and 25%, respectively, which is suggested for automotive seat frame applications.