表面活性剂对镁合金化学复合镀Ni-P-SiC的影响  

Effect of Surfactants on Electroless Plating Ni-P-SiC Composite Coating on Magnesium Alloy

作　　者：黄伟九[1] 薛燕[1] 

机构地区：[1]重庆理工大学材料科学与工程学院,重庆400050

出　　处：《材料工程》2010年第1期23-27,共5页Journal of Materials Engineering

基　　金：低维材料及其应用技术教育部重点实验室开放基金(KF0604);重庆市自然科学基金(CSTC;2008BA4037)

摘　　要：本工作系统地考察了十二烷基苯磺酸钠(ABS-Na)、十二烷基硫酸钠(DS)、聚乙二醇(6000)(PEG(6000))、吐温-80(Tween-80)等表面活性剂及其组合对镁合金化学复合镀Ni-P-SiC的镀液稳定性、镀速、镀层表面形貌和性能的影响,并优选了适合镁合金化学复合镀Ni-P-SiC镀层的表面活性剂。结果表明:随着表面活性剂加入,镀液稳定性明显改善;表面活性剂的种类对镀速有重要影响,含十二烷基苯磺酸钠+聚乙二醇(6000)复合型表面活性剂的镀液镀速最快。综合考虑复合镀层的表面质量、显微硬度和耐腐蚀性能,优选的适于镁合金化学复合镀Ni-P-SiC的表面活性剂是十二烷基硫酸钠+聚乙二醇(6000)的复合物。The effect of different surfactants,such as neopelex（ABS-Na）,lauryl sodium sulfate（DS）,polyethylene glycol（6000）（PEG（6000））,Tween-80 and their mixtures,on the stability of plating solution,deposition velocity of electroless plating Ni-P-SiC,morphology and performances of Ni-P-SiC composite coating on magnesium alloys was studied.Further,the optimization surfactant for electroless plating Ni-P-SiC composite coating on magnesium alloys was selected.The results show that the surfactants can evidently improve the stability of electroless plating Ni-P-SiC solution,the species of surfactants have an important effect on deposition velocity,the deposition velocity of the plating solution containing neopelex＋polyethylene glycol（6000） is the fastest.Based on the surface quality,hardness and anti-corrosion performance of the Ni-P-SiC composite coating,mixture of lauryl sodium sulfate＋polyethylene glycol（6000） is selected as the best adaptive surfactant for electroless plating Ni-P-SiC composite c.oating on magnesium alloys.

关 键 词：镁合金 化学复合镀Ni—P—SiC 表面活性剂 耐蚀性 

分 类 号：TG178[金属学及工艺—金属表面处理]