采用搅拌铸造法制备了 Ti C/ZA43复合材料 ,用环 -块摩擦磨损试验机测试了连续润滑条件下复合材料的滑动摩擦磨损性能。结果表明 ,Ti C颗粒使基体 ZA43合金的微观组织及磨损性能显著改善 ,摩擦系数和磨痕宽度降低且变化平稳。Ti C/ZA43复合材料的磨面光滑 ,磨痕短细 ;而未增强的 ZA43局部表现为粘着磨损 ,表面产生局部的塑性流动。摩擦过程中 ,未增强的ZA43合金次表层的硬度明显降低 ;而 Ti C/ZA43变化不明显。 The TiC / ZA43 composites were prepared by a stirring casting method. The tribological properties of the composites were tested by ring-block friction and wear testing machine. The results show that TiC particles significantly improve the microstructure and wear properties of the matrix ZA43 alloy, the friction coefficient and wear scar width decreases and changes smoothly. Ti C / ZA43 composite surface smooth, wear marks short fine; while the non-enhanced ZA43 local performance of adhesion wear, the surface of the local plastic flow. During the rubbing process, the hardness of the unabraded ZA43 alloy subsurface layer decreased obviously; however, the change of Ti C / ZA43 was not obvious.