This article statistically investigates the effect of various parameters such as material factors: silicon carbide (SiC) fraction, graphite (Gr) fraction and mechanical factors: normal load, sliding distance and speed on the sliding wear rate of self-lubricating AZ91D-SiC-Gr hybrid magnesium composites. The self-lubricating hybrid composites were fabricated using advanced vacuum assisted stir casting process. The sliding wear tests have been performed under dry conditions on pin-on-disc tribometer at 10-50 N loads, 1-3 m/s sliding speed and 1000-2000 m sliding distance. It has been examined that hybrid composites yielded improved wear resistance with reinforcement of SiC and solid lubricant graphite. ANOVA and signal-to-noise ratio investigation indicated that applied load was the most critical factor influencing the wear rate of fabricated hybrid composites followed by sliding distance. Further, the AZ91D/5SiC/5Gr hybrid composite has exhibited the best wear properties. From the SEM and EDS analysis of worn surfaces, delamination was confirmed as the dominant wear mechanism for AZ91D-SiC-Gr hybrid composites.

本文从统计学角度研究了各种参数的影响，例如材料因素：碳化硅（SiC）分数，石墨（Gr）分数以及机械因素：法向载荷，滑动距离和速度对自润滑AZ91D-SiC-的滑动磨损率的影响Gr杂化镁复合材料。自润滑杂化复合材料是采用先进的真空辅助搅拌铸造工艺制备的。滑动磨损测试是在针盘式摩擦计上在干燥条件下以10-50 N的载荷，1-3 m / s的滑动速度和1000-2000 m的滑动距离进行的。已经检查出，杂化复合材料通过增强SiC和固体润滑剂石墨而提高了耐磨性。方差分析和信噪比研究表明，施加的载荷是影响人造杂化复合材料磨损率及其滑动距离的最关键因素。此外，AZ91D / 5SiC / 5Gr杂化复合材料表现出最佳的磨损性能。从磨损表面的SEM和EDS分析，可以确定分层是AZ91D-SiC-Gr杂化复合材料的主要磨损机理。