An attempt was made to synthesize aluminum alloy (AA) 7075 matrix reinforced with 0, 1, 3, 5 wt% Al₂O₃ particulates by using stir casting technique. Mechanical properties and wear behavior were examined. The hardness and tensile properties were obtained before and after addition of Al₂O₃ particulates to reveal the extent improvement. Wear behavior was examined by using a pin-on-disc device to validate the improvement of the wear resistance. The results showed that adding of Al₂O₃ reinforcement were significantly enhanced the mechanical properties. The ultimate tensile strength (UTS) and yield tensile strength (YTS) were observed 133 MPa, 35 MPa for the unfilled aluminum matrix, whereas 152 MPa and 47 MPA were achieved at 5 wt% Al₂O₃ nanocomposites which resulted in 14.3 and 34.3% improvement, respectively. The hardness was observed 57 BHN and 72 BHN at 0 wt% and 5 wt% Al₂O₃ respectively, resulting in an improvement of 26.3%.

尝试通过搅拌铸造技术合成用0、1、3、5 wt％Al ₂ O ₃颗粒增强的铝合金（AA）7075基体。检查了机械性能和磨损行为。在添加Al ₂ O ₃颗粒之前和之后获得硬度和拉伸性能，以显示程度的改善。通过使用销钉盘式设备检查磨损行为，以验证耐磨性的提高。结果表明，Al ₂ O _3的添加增强后，力学性能明显提高。观察到极限拉伸强度（UTS）和屈服拉伸强度（YTS）分别为133 MPa，35 MPa（未填充的铝基体），而在5 wt％Al ₂ O ₃纳米复合材料下分别达到152 MPa和47 MPA ，得到14.3和34.3。分别提高％。在0重量％和5重量％的Al ₂ O ₃下观察到硬度分别为57 BHN和72 BHN ，结果提高了26.3％。