直流磁场作用下含纳米MoS2润滑油的摩擦磨损特性  

Tribological Properties of Lubricating Oils Containing Nano-MoS2 Under Direct Magnetic Fields

作　　者：姜自超 方建华 陈波水 江泽琦 王鑫 冯彦寒 JIANG Zichao;FANG Jianhua;CHEN Boshui;JIANG Zeqi;WANG Xin;FENG Yanhan(Department of Petrochemistry,Army Logistics University of PLA,Chongqing 401311,China;College of Pharmacy,Army Medical University of PLA,Chongqing 400038,China)

机构地区：[1]陆军勤务学院油料系,重庆401311 [2]陆军军医大学药学院,重庆400038

出　　处：《石油学报（石油加工）》2019年第5期1007-1013,共7页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金项目(51375491);重庆自然科学基金项目(CSTC 2014JCYJAA50021,CSTC 2017JCYJAX0058);重庆市研究生科研创新项目(CYB18128)资助

摘　　要：通过在四球摩擦磨损试验机接触区设置直流磁场发生装置,研究了磁场作用下添加纳米MoS 2润滑油的摩擦磨损性能。采用扫描电镜(SEM)、能谱仪(EDS)及X射线光电子能谱仪(XPS)对钢球磨斑表面形貌和典型元素的含量及化学状态进行了分析,探讨了纳米MoS 2的摩擦学机理。试验结果表明:纳米MoS 2在有磁场和无磁场条件下均能有效改善润滑油的减摩抗磨性能,且在有磁场条件下效果更为明显,因为不均匀的直流磁场能使纳米MoS 2在摩擦表面富集,同时也促进摩擦化学反应进行。A direct magnetic field generator is assembled around the friction region of a four-ball tester.The effect of direct magnetic field on tribological properties of lubricating oil containing nano-MoS 2 is studied.The morphology,the chemical components and contents of typical elements on the worn surfaces are investigated by the scanning electron microscope,energy dispersive spectroscopy and X-ray photoelectron spectroscopy,in order to understand the tribological mechanism.The results show that nano-MoS 2 is effective in reducing friction and wear,especially under the direct magnetic field.This is because the direct magnetic field enriches concentrations of nano-MoS 2 on the friction surface,and promotes the tribo-chemical reactions.

关 键 词：直流磁场 纳米MoS 2 摩擦磨损 表面分析 

分 类 号：TH117.3[机械工程—机械设计及理论]