(1. 河北科技大学 材料科学与工程学院，石家庄 050018；
2. 河北省材料近净成形技术重点实验室，石家庄 050018)
摘 要: 对Zr-8Al合金进行化学复合镀Ni-P-ZrO2处理，并研究OP-10和LAS分散剂单独以及复合添加对复合镀层的沉积效率、显微形貌和耐腐蚀性能的影响。结果表明：OP-10添加量为10 mL/L时，复合镀层沉积速率最高，OP-10和LAS复合添加制备的复合镀层沉积速率最低。OP-10和LAS复合添加制备的复合镀层胞状结构均匀细小，表面质量最好。与Zr-8Al合金基体相比，OP-10和LAS复合添加制备的复合镀层在3.5% NaCl(质量分数)溶液中的自腐蚀电位正移，自腐蚀电流最小，耐腐蚀性能最佳。
关键字: Zr-Al合金；分散剂；化学复合镀；Ni-P-ZrO2镀层；耐腐蚀性能
（1. School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;
2. Hebei Key Laboratory of Material Near-Net Forming Technology, Shijiazhuang 050018, China）
Abstract:The electro-less Ni-P-ZrO2 composite plating was prepared on Zr-8Al alloy with OP-10 and LAS separate and compound additions. The deposition rate, microstructure and corrosion resistance in 3.5% NaCl solution of electro-less composite platings were investigated. The results show that the deposition rate of electro-less Ni-P-ZrO2 composite plating prepared with OP-10 is highest while that of plating prepared with OP-10 and LAS is lowest. The cellular of electroless Ni-P-ZrO2 composite plating is fine and uniform which indicates the quality is super. Compared with that of Zr-8Al alloy, the self corrosion potential of the electroless Ni-P-ZrO2 composite plating prepared with OP-10 and LAS is shifted positively and the self corrosion current density is minimum so that its corrosion resistance is the best.
Key words: Zr-Al alloy; dispersant; electro-less composite plating; Ni-P-ZrO2 plating; corrosion resistance
