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利用挤压铸造法制备了 Al2 O3 f+Cf/ZL10 9短纤维混杂金属基复合材料 ,并利用统计学方法对比研究了在滑动速度 0 .837m/s、载荷 196 N条件下纤维取向对该混杂复合材料干滑动摩擦磨损性能的影响 .结果表明 :在纤维平行取向和垂直取向时 ,该混杂复合材料的磨损率和摩擦系数均服从正态分布 ;平行取向情况下磨损率均值大于垂直取向下的磨损率 ,而摩擦系数均值小于垂直取向 ;纤维垂直取向有利于复合材料耐磨性能的提高 ,2种取向下复合材料的主要磨损机制均为犁沟磨损
Al 2 O 3 f + Cf / ZL10 9 short-fiber mixed metal matrix composites were prepared by squeeze casting method. The effects of fiber orientation on the miscibility of Al 2 O 3 f + Cf / The results show that the wear rate and the friction coefficient of the hybrid composite obey the normal distribution in the parallel orientation and the vertical orientation of the fiber, and the average wear rate in the parallel orientation is larger than that in the vertical orientation Wear rate, and the average value of friction coefficient is less than the vertical orientation; the vertical orientation of the fiber is conducive to improve the wear resistance of the composite material, the main wear mechanism of the composite under both orientations are furrow wear