研究了稀土元素Ce、La、Yb、Pr、Dy等的氧化物作为镀铬添加剂时 ,对镀铬溶液的影响 ,结果表明稀土元素与适当F-离子同时存在时 ,可提高铬的沉积效率 .另外 ,通过阴极极化曲线的测定 ,初步探讨了对稀土氧化物及F-离子在电极表面的作用机理 The effects of rare earth elements Ce, La, Yb, Pr, Dy and other oxides as chrome additives on the chrome plating solution were studied. The results show that the deposition efficiency of chromium can be increased when rare earth elements are present together with appropriate F- Through the determination of cathodic polarization curves, the mechanism of action of rare earth oxides and F- ions on the electrode surface was discussed