分散剂对锆铝合金Ni-P-ZrO2化学复合镀的影响  

Effects of dispersant on properties of electroless Ni-P-ZrO2 composite plating on Zr-8Al alloy

作　　者：马静[1,2] 高颖 李建辉[1] MA Jing;GAO Ying;LI Jian-hui(School of Materials Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China;Hebei Key Laboratory of Material Near-Net Forming Technology,Shijiazhuang 050018,China)

机构地区：[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

出　　处：《中国有色金属学报》2019年第8期1616-1621,共6页The Chinese Journal of Nonferrous Metals

基　　金：国家重点基础研究发展计划资助项目(2010CB731604)~~

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。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.

关 键 词：Zr-Al合金 分散剂 化学复合镀 Ni-P-ZrO2镀层 耐腐蚀性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]