By using the methods of XRD, SEM/EDS, electrochemical polarization, and a weight loss test, the effects of the rare earth salt CeCl3 on the adherence, hardness, porosity and corrosion resistance of an electroplated Pd-Ni film on 316L stainless steel were studied. The results showed that by adding 1.0 g L?1 CeCl3 in the plating bath, the obtained Pd-Ni film was obviously improved. The grain size was refined, and the microstructure was more compact and uniform. The film hardness and the adherence to the substrate increased, and the corrosion resistance in a 20 wt % H2SO4 solution (80 °C) obviously increased. Ce3 increased the throwing power of the bath, which resulted in more uniform current distribution and strengthened the cathodic polarization degree during the electroplating process.
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机译：通过使用XRD，SEM / EDS，电化学偏振和减肥试验的方法，稀土盐CECL3对316L不锈钢电镀PD-Ni膜的粘附，硬度，孔隙率和耐腐蚀性的影响研究过。结果表明，通过在电镀浴中加入1.0gl≥1cecl3，得到了得到的pd-ni膜明显改善。精制晶粒尺寸，微观结构更紧凑均匀。薄膜硬度和对基材的粘附增加，并且20wt％H 2 SO 4溶液（80℃）中的耐腐蚀性明显增加。 CE3增加了浴的抛光功率，从而导致电流分布更均匀，并在电镀过程中加强阴极偏振度。
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