采用直接熔炼以及在熔炼时分别施加机械搅拌、超声处理、机械搅拌和超声处理等4种方式制备质量分数0.1%纳米SiC_p/Zn-Al复合材料，研究了熔炼工艺对其显微组织、显微硬度和摩擦磨损性能的影响。结果表明：不同熔炼工艺所得试样的组织均主要由α（Al，Zn）富铝相和η（Al，Zn）富锌相组成，显微硬度相差不大；直接熔炼以及施加机械搅拌、超声处理、机械搅拌和超声处理熔炼后，试样内部SiC_p的分散效果依次增强，晶粒大小依次变得更加均匀，且其平均摩擦因数分别为0.38，0.33，0.32，0.31；小载荷低频率、小载荷高频率、中载荷高频率和大载荷高频率条件下，同时施加机械搅拌和超声处理熔炼所得试样的磨损量比直接熔炼分别降低77.4%，52.9%，43.3%，52.5%，磨损机制均为黏着磨损。

Nano-SiC_p/Zn-Al composites with 0.1mass% SiC_p were prepared by direct smelting and by applying mechanical stirring, ultrasonic processing, and simultaneous mechanical stirring and ultrasonic processing during smelting, respectively. The effects of smelting process on the microstructure, microhardness and friction and wear properties were studied. The results show that the microstructures of samples obtained by different smelting processes were all mainly composed of α(Al,Zn) Al-rich phase and η(Al,Zn) Zn-rich phase, and the microhardness had little difference. After direct smelting and smelting with mechanical stirring, ultrasonic processing, simultaneous mechanical stirring and ultrasonic processing, the dispersion effect of SiC_p in the composite was successively enhanced, the grain size became more uniform in turn, and the average friction factor was 0.38, 0.33, 0.32, 0.31, respectively. Under conditions of small-load low-frequency, small-load high-frequency, medium-load high-frequency, large-load high-frequency, the wear loss of the sample obtained by applying mechanical stirring and ultrasonic processing during smelting was reduced by 77.4%, 52.9%, 43.3% and 52.5%, respectively, comparing with that by the direct smelting. The wear mechanisms were all adhesive wear.