电沉积Ni-Co-Cr合金镀层的电化学性能  

Electrodeposited Ni-Co-Cr coatings and their corrosion resistance

作　　者：游福仁 王强[1] 李文文[1] 史鹏忠 张建旗[1] 

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《内蒙古科技大学学报》2014年第3期249-253,共5页Journal of Inner Mongolia University of Science and Technology

基　　金：国家自然科学基金资助项目(51061012)

摘　　要：采用电化学恒电流技术在铜基体上沉积制备了Ni-Co-Cr三元合金镀层,研究了柠檬酸钠、硼酸及十二烷基硫酸钠对合金镀层的耐蚀性能影响.结果表明:在柠檬酸钠的浓度为200 g/L,糖精的浓度为1.4 g/L,硼酸的浓度为40 g/L,十二烷基硫酸钠的浓度为0.18 g/L,在此条件下沉积的合金镀层耐蚀性能最佳.Cu snbstrate was coated with Ni-Co-Cr alloy coatings through electrodepositinn. Citric acid, boric acid and sodium lauryl sulfate versus the coatings properties were investigated. The corrosion resistance and adhesive property of the coatings were assessed using electrochemical impedance and bending test. The results indicate that the corrosion resistant performance of alloy coating is the best under the deposition condition that the concentration of sodium citrate is 200 g/L, the boric acid＇s is 40 g/L, the saccharin＇s is 1.4 g/L, and the sodium dodecyl sulfate＇s is 0.18 g/L.

关 键 词：添加剂 电沉积 Ni-Co-Cr合金镀层 耐蚀性能 

分 类 号：TG146.1[一般工业技术—材料科学与工程] TQ153.2[金属学及工艺—金属材料]