镁合金复合化学镀(Ni-P)-Si_3N_4复合镀层工艺研究  

Study on Technology of Composite Electroless Plating of (Ni-P)-Si_3N_4 Composite Coating on Magnesium Alloy

作　　者：杨友[1] 李雪松[1] 佟金伟[2] 姜东梅[3] 

机构地区：[1]长春工业大学先进结构材料省部共建教育部重点实验室,吉林长春130012 [2]吉林石油集团有限责任公司储运销售公司,吉林松原138000 [3]空军航空大学力学教研室,吉林长春130021

出　　处：《电镀与精饰》2010年第3期1-4,共4页Plating & Finishing

基　　金：吉林省教育厅"十一五"科学技术研究项目(2008049)

摘　　要：通过复合化学镀的方法在镁合金表面制备（Ni-P）-Si3N4复合镀层，主要研究了镀液中颗粒含量、温度、pH等工艺参数对复合镀层表面形貌及显微硬度的影响。结果表明，获得良好表面微观形貌和较高显微硬度的纳米复合镀层的工艺参数为：0=80℃、pH=8．5，ρ（Si3N4）为7-9g／L。（Ni-P）-Si3N4 nano particle composite coatings were prepared on AZ91D magnesium alloy by electroless deposition. The effects of the particle content, temperature and pH of electrolyte on surface morphology and micro-hardness of the composite coatings were studied by SEM and hardness tester, respectively. The results showed that optimal parameters for the composite coating of better morphology and higher micro-hardness were, the content of the nano-SiaN4 particles in electrolyte is 7-9 g/L, temperature is 80℃ and pH is 8.5.

关 键 词：镁合金 复合化学镀 (Ni-P)-Si3N4 复合镀层 显微硬度 

分 类 号：TQ153.2[化学工程—电化学工业]