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用氧化铝短纤维增强共晶铝硅合金，研究Al2O3f／ZL109复合材料及基体合金的高温（～250℃）摩擦磨损性能。结果表明，在边界润滑条件下，复合材料的高温耐磨性比基体合金更为优异，摩擦系数也有所降低。运用扫描电镜和电子探针对两类材料的磨损表面及其材料转移情况进行了观察，并以此讨论了磨损机制。
The high temperature (~ 250 ℃) friction and wear properties of Al2O3f / ZL109 composites and matrix alloys were studied by using alumina short fiber reinforced eutectic Al-Si alloy. The results show that under the condition of boundary lubrication, the wear resistance of the composite is more excellent than that of the matrix alloy and the friction coefficient is also decreased. Scanning electron microscopy and electron probe were used to observe the worn surface and the material transfer of the two kinds of materials, and the wear mechanism was discussed.