采用电沉积法在纯铜基体上制备了银-石墨复合镀层，研究了镀液搅拌速率对银-石墨复合镀层耐蚀性和耐磨性的影响。结果表明：随着搅拌速率的增大，复合镀层中石墨的含量先增大后减小，自腐蚀电流密度和自腐蚀电位呈现先增大后减小的趋势，但整体变化幅度不大；搅拌速率为320~920 r/min时，随着搅拌速率的增大，复合镀层摩擦因数增大，磨损率增大。考虑到工业生产要求，最佳搅拌速率为420 r/min，此时制备的复合镀层的磨损率可低至8.13×10-14 m3/(N·m)。

A silver-graphite composite coating was prepared by electro-deposition method. The influence of stirring speed on the corrosion resistance and wear resistance of the silver-graphite composite coating was particularly investigated. It is indicated that the area fraction of the graphite in the composite coating first increased and then decreased with the rise of stirring speed. The corrosion current dentisy and corrosion potential showed a trend of first increase and then decrease, but the overall rate of change was not obvious. In the range of 320 r/min to 920 r/min, both the friction coefficient and the wear rate of the silver-graphite composite coating increased with the rise of stirring speed. Considering the industrial production requirements be taken into consideration, the best stirring speed is suggested to be 420 r/min, at this stirring speed, the wear rate of the preparation of composite coating can be as low as 8.13×10-14 m3/(N·m).