类石墨非晶碳膜与不同硅油构建的固-油协同润滑研究  

Solid-Oil Synergistic Lubrication Constructed by Graphite-Like Amorphous Carbon Films and Different Silicone Oils

作　　者：何翕 庄佳伟 安广萍 林燕飞 刘小强[1] 郝俊英[3] HE Xi;ZHUANG Jiawei;AN Guangping;LIN Yanfei;LIU Xiaoqiang;HAO Junying(Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Jiangxi Ganzhou 341000,China;School of Civil and Surveying&Mapping Engineering,Jiangxi University of Science and Technology,Jiangxi Ganzhou 341000,China;State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Gansu Lanzhou 730000,China)

机构地区：[1]江西理工大学材料冶金化学学部,江西赣州341000 [2]江西理工大学土木与测绘工程学院,江西赣州341000 [3]中国科学院兰州化学物理研究所固体润滑国家重点实验室,甘肃兰州730000

出　　处：《摩擦学学报》2023年第7期758-767,共10页Tribology

基　　金：国家自然科学基金(51865017);江西省自然科学基金(20202BABL204044)资助

摘　　要：硅油由于具有良好的化学稳定性、黏温特性和耐高温等性能,在机械设备的润滑方面发挥了重要作用.但是在边界润滑条件下,硅油在常见金属摩擦副界面的摩擦系数较高且造成的磨损较大,润滑效果不理想.利用类石墨非晶碳与硅油构建固-油协同润滑体系,对比研究了氢离子注入改性前后的类石墨非晶碳膜(GLC)与不同基团封端硅油的固-油复合边界润滑条件下的摩擦学性能.结果表明:类石墨碳膜与硅油复合后表现出显著的固-油协同润滑效应,其摩擦系数低至0.02,磨损率低至5.3×10^(−8 )mm^(3)/(N·m).相比于注入改性的GLC膜,未改性GLC膜与含有极性基团封端的硅油复合表现出更低的摩擦系数.这可能主要源于未改性GLC膜的碳原子主要以sp^(2)杂化键存在,其π电子能够与硅油的极性基团产生偶极诱导作用,使油膜在摩擦界面吸附更为稳固.但是,注入改性的GLC膜由于力学性能的改善,其与多数类型的硅油复合后的抗磨损性能总体优于未注入的GLC膜.Silicone oils have been widely applied for the lubrication of mechanical devices due to their high chemical stability,good thermal resistance and superior viscosity-temperature properties.However,the lubrication performance of the silicone oils is usually non-ideal for the metal such as stainless steel tribopairs under the boundary lubrication regime because of the high friction coefficient and severe wear.Recently,the solid-oil synergistic lubrication strategy of which thin solid film and coating materials commonly were used has been increasingly employed to develop superior lubrication technologies.Compared with the single oil lubrication and solid lubrication,solid-oil synergistic lubrication has a shorter run-in period,higher stability and lower wear resistance.Amorphous carbon coatings have attracted widely attention in the field of solid lubrication materials due to their high hardness,low friction,superior wear resistance and outstanding chemical inertness.Here,a solid-oil synergistic lubrication system was constructed by using the graphitelike carbon(GLC),a classic amorphous carbon with high fraction of sp^(2) carbon bonds,and silicone oils.The solid-oil lubrication behaviors of GLC films combining different groups of terminated silicone oils under boundary lubrication were comparatively studied to survey the effects of terminated group of silicon oils.The results showed that the graphite-like carbon films exhibited obvious solid-oil synergistic lubrication effects with silicone oils.And the performance of such solid-oil synergistic lubrication system was influenced by terminated group of silicon oils.Meanwhile,the effect of carbon bonds structure on the solid-oil synergistic lubrication behaviors were scrutinized by using different GLC films with and without hydrogen ion implantation which was a common technology of inducing the change of carbon hybridization of amorphous carbon films.The friction coefficient and wear rate of the solid-oil synergistic lubrication system were as low as 0.02 and 5.3×10^(�

关 键 词：类石墨薄膜 硅油 离子注入 固-油复合润滑 边界润滑 

分 类 号：TH117.1[机械工程—机械设计及理论] TH142.2[一般工业技术—材料科学与工程]