Study of mechanical properties and wear behavior of nano-ZrO2-hardened Al2024 matrix composites prepared by stir cast method

The Al2024 matrix composites reinforced by different weight percentages of nano-ZrO2 particles prepared stir-cast method. Physical and mechanical properties (microhardness, compressive test elastic moduli) the samples were measured. Moreover, effect sliding distance applied load on wear behavior all was studied. results showed that relative density decreased with increase while apparent porosity increased. significant improvement in properties, for example microhardness, ultimate strength, strengthening efficiency Young’s modulus. rate as reinforcement content increased it load. bulk modulus containing 10 wt.% ZrO2 sample improved to approximately 31, 60 49%, respectively. For same sample, around 20.2 21.3 under loads 40 N,