Ni-PTFE复合镀层的制备及其摩擦学性能研究  

Study on the Preparation and Tribological Properties of Ni-PTFE Composite Coating

作　　者：易超 黄巍[1] 靳广虎[1] 黄梁 宋宜强 YI Chao;HUANG Wei;JIN Guanghu;HUANG Liang;SONG Yiqiang(National Key Laboratory of Helicopter Transmission Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学直升机传动技术国家级重点实验室,江苏南京210016

出　　处：《电镀与精饰》2022年第7期1-7,共7页Plating & Finishing

基　　金：国家自然科学基金资助项目(51975273)。

摘　　要：采用复合共沉积方法,研制了基于紫铜基体的Ni-PTFE(镍-聚四氟乙烯)复合镀层。在镀液中PTFE的分散性研究的基础上,考虑PTFE悬浮量对复合镀层的影响,开展了对单一Ni镀层以及Ni-PTFE复合镀层摩擦学性能研究。研究结果表明:相对Ni镀层而言,Ni-PTFE复合镀层具有很好的减摩效果。Ni镀层的摩擦系数为0.7,Ni-PTFE复合镀层的摩擦系数为0.22,仅为镍镀层的32%左右;此外,Ni-PTFE复合镀层的磨损小,耐磨性能优异。其中,添加(20 mL/L)PTFE的复合镀层综合性能最优。A composite co-deposition method was used to prepare a Ni-PTFE composite coating on the copper substrate.Based on the research on the dispersion of PTFE in the plating solution,the influence of PTFE suspension on the composite coating is considered.The tribological properties of single Ni coating and Ni-PTFE composite coating are studied.The results of the study are that the Ni-PTFE com‐posite coating on the surface has a good anti-friction effect compared with the Ni coating.The coeffi‐cient of friction of the Ni coating is 0.7,and the coefficient of friction of the Ni/PTFE composite coat‐ing is 0.22,which is only about 32%of that of the pure nickel coating.At the same time,the wear is lighter,showing excellent wear resistance,the composite coating with(20 mL/L)PTFE has the best overall performance.

关 键 词：复合共沉积 Ni-PTFE复合镀层 减摩性 耐磨性 

分 类 号：TG174.4[金属学及工艺—金属表面处理]