钻井泥浆泵活塞表面多场耦合电沉积Ni-TiN纳米镀层研究  

Study on Ni-TiN Nanocoatings Prepared by Multi-field Coupling Electrodeposition on the Surface of the Piston in Drilling Mud Pumps

作　　者：夏法锋[1] 史魏然 马春阳[1] 李洋[1] 焦金龙[1] 

机构地区：[1]东北石油大学机械科学与工程学院,大庆163318

出　　处：《人工晶体学报》2015年第1期168-171,共4页Journal of Synthetic Crystals

基　　金：国家自然科学基金(51474072)

摘　　要：采用多场耦合电沉积方法,在钻井泥浆泵活塞表面制备Ni-TiN纳米镀层。利用X射线衍射仪(XRD)、原子力显微镜(AFM)、摩擦磨损试验机对Ni-TiN纳米镀层微观组织结构和耐磨性能进行研究。XRD分析表明,在钻井泥浆泵活塞试样表面存在金属镍晶粒和TiN粒子。当复合镀液中TiN粒子为6 g/L时,Ni-TiN纳米镀层中镍晶粒和TiN粒子的平均粒径分别为65.5 nm和38.6 nm。AFM分析表明,当TiN粒子浓度为6 g/L时,镀层表面镍晶的平均粒径最小,其均方根表面粗糙度(RMS)为44.077 nm。摩擦磨损实验测试表明,当复合镀液中TiN粒子为6 g/L时,Ni-TiN纳米镀层的磨损量和摩擦系数都最小,其最小磨损量和摩擦系数分别为34.7 mg和0.44。Ni-TiN nanocoatings were deposited by multi-field coupling electrodeposition method on the the surface of the piston. Microstructure and wear-resisting properties of the nanocoatings were investigated by X-ray diffraction（XRD）,atomic force microscope（AFM） and friction wear testing machine. XRD results indicate that there are nickel grains and TiN particles in the piston and the average grain sizes are65. 5 nm and 38. 6 nm,respectively,when the TiN concentration is 6 g /L. AFM results show that when the TiN concentration is 6 g /L,nickel grains in the nanocoating are mimimum,and the RMS is 44. 077 nm. The friction wear testing results present that when the TiN concentration is 6 g /L,the abrasion loss and friction coefficient are mimimum,and they are 34. 7 mg and 0. 44,respectively.

关 键 词：钻井泥浆泵 多场耦合 电沉积 Ni-TiN纳米镀层 微观组织 

分 类 号：TG153.43[金属学及工艺—热处理]