沉积温度对CrN涂层干摩擦及大豆油润滑下摩擦学性能的影响  

Effect of Deposition Temperature on the Tribological Properties of CrN Coatings under Dry Friction and Soybean Oil Lubrication Conditions

作　　者：李阳 孙会来 杨淑燕 曹磊 万勇 LI Yang;SUN Huilai;YANG Shuyan;CAO Lei;WAN Yong(School of Mechanical and Automotive Engineering,Qingdao University of Technology,Qingdao Shandong 266033,China;School of Mechanical Engineering,Qilu University of Technology,Jinan Shandong 250353,China;Naxau New Materials Company Limited,Jiaxing Zhejiang 314200,China;State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou Gansu 730000,China)

机构地区：[1]青岛理工大学机械与汽车工程学院,山东青岛266033 [2]齐鲁工业大学机械工程学院,山东济南250353 [3]纳狮新材料有限公司,浙江嘉兴314200 [4]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：《润滑与密封》2024年第4期103-110,共8页Lubrication Engineering

基　　金：国家自然科学基金项目(51975304);山东省自然科学基金重大基础项目(ZR2022ZD09)。

摘　　要：为探究沉积温度对CrN涂层摩擦学性能的影响,同时寻找适合CrN涂层润滑的绿色润滑剂,采用磁控溅射技术在不同温度下制备CrN涂层。利用X射线衍射仪、扫描电子显微镜、AFM原子力显微镜、划痕仪、纳米压痕仪和摩擦磨损试验机评价涂层的微观结构、力学性能,以及在干摩擦及大豆油润滑条件下的摩擦磨损性能。结果表明:在250℃下沉积的CrN涂层具有最致密的晶状结构,且力学性能最优。摩擦试验结果显示,在干摩擦和大豆油润滑下250℃下沉积的CrN涂层表现出最优的摩擦学特性。XPS分析表明,由于摩擦的存在,大豆油会在涂层表面发生摩擦化学反应并生成一层化学吸附膜,从而能有效减轻涂层的摩擦和磨损。250℃下沉积的CrN涂层具有最优的力学及摩擦学性能,且大豆油极为适合CrN涂层的润滑。To investigate the effect of deposition temperature on the tribological properties of CrN coatings,find a green lubricant suitable for the coatings,the CrN coatings were prepared by magnetron sputtering technique at different deposition temperatures.Their microstructure,mechanical properties,as well as friction and wear properties were evaluated by using X-ray diffraction,scanning electron microscope,atomic force microscope,scratch tester,nano-indentation and tribotester respectively.The results show that the CrN coatings deposited at 250℃ have the densest crystalline structure and the best mechanical properties.Tribological experiments show that the CrN coatings deposited at 250℃ exhibit the optimum tribological properties under both dry friction and soybean oil lubrication conditions.XPS analysis shows that the soybean oil undergoes a tribochemical reaction due to the presence of friction and forms a chemisorbed film on the coating surface.This film effectively reduces the friction and wear of the coatings.CrN coatings deposited at 250℃ have the optimum mechanical and tribological properties,and soybean oil is an excellent lubricant for CrN coatings.

关 键 词：CRN涂层 沉积温度 力学性能 大豆油 摩擦学性能 

分 类 号：TG174.444[金属学及工艺—金属表面处理] TH117.1[金属学及工艺—金属学]