In this study, magnesium (AZ91D) hybrid composites reinforced with graphite and tungsten carbide were fabricated by compact pressing powder metallurgy technique. Optical microstructure and XRD studies were carried to analyse the distribution of particles and to identify the phases. The mechanical and wear characteristics of the fabricated magnesium (AZ91D) composite samples were studied. The measured density and calculated density of the composites are close to each other indicating minimum porosity. The presence of graphite and tungsten carbide enhances hardness of the composites. Strength of magnesium (AZ91D) composites is higher than the base alloy at room temperature. Addition of tungsten carbide in magnesium composites decreases the wear. Magnesium hybrid composites used in the study exhibit high strength, high hardness and wear resistance.

在这项研究中，通过紧密压制粉末冶金技术制备了由石墨和碳化钨增强的镁（AZ91D）杂化复合材料。进行了光学显微结构和XRD研究，以分析颗粒的分布并确定相。研究了所制备的镁（AZ91D）复合材料样品的力学性能和磨损特性。复合材料的测量密度和计算密度彼此接近，表明最小孔隙率。石墨和碳化钨的存在增强了复合材料的硬度。在室温下，镁（AZ91D）复合材料的强度高于基础合金。在镁复合材料中添加碳化钨可降低磨损。研究中使用的镁杂化复合材料表现出高强度，高硬度和耐磨性。