This paper encapsulates the comparative study of physical, mechanical as well as tribological properties of Al2024 alloy and its composites Al2024-SiC and Al2024-TiB₂ prepared by stir casting technique. Microstructural characterization were conducted using SEM (scanning electron microscope) with EDS (energy-dispersive X-ray spectroscopy). Experimental investigation of density, porosity, microhardness, ultimate tensile strength and wear behaviour of Al2024 alloy and its composites were carried out. Microstructural characterization confirms uniform distribution of SiC and TiB₂ particulates and excellent matrix-reinforcement interfacial bonding. Enhanced mechanical and tribological properties were observed for both the prepared composites compared to Al2024 alloy; this increment was higher for Al2024-TiB₂ composite than Al2024-SiC composite. Al2024-TiB₂ composite exhibits superior wear resistance with non-existence of plastic deformation and adhesion on the wear tracks. The size and shape of the debris also play an important role in determining the wear rates of Al2024 alloy and its composites.

本文概述了通过搅拌铸造法制备的Al2024合金及其复合材料Al2024-SiC和Al2024-TiB ₂的物理，机械和摩擦学性能的比较研究。使用SEM（扫描电子显微镜）和EDS（能量分散X射线光谱法）进行微观结构表征。进行了Al2024合金及其复合材料的密度，孔隙率，显微硬度，极限拉伸强度和磨损行为的实验研究。微观结构表征证实了SiC和TiB _2的均匀分布颗粒和出色的基体增强界面粘结。与Al2024合金相比，两种制备的复合材料均观察到增强的机械和摩擦学性能。Al2024-TiB ₂复合材料的这一增量高于Al2024-SiC复合材料。Al2024-TiB ₂复合材料表现出优异的耐磨性，在磨损道上不存在塑性变形和粘附。碎屑的大小和形状在确定Al2024合金及其复合材料的磨损率方面也起着重要作用。