含硫代磷酸铵盐润滑油在电磁场作用下的摩擦学性能  

Tribological Characteristics of Lubricating Oils with Ammonium Thiophosphate Under Electromagnetic Field

作　　者：江泽琦 冯彦寒 方建华 刘坪 陈波水 谷科城 吴江 JIANG Ze-qi;FENG Yan-han;FANG Jian-hua;LIU Ping;CHEN Bo-shui;GU Ke-cheng;WU Jiang(College of Pharmacy,Army Medical University,Chongqing 400038, China;Department of Petroleum,Army Logistics University, Chongqing 401311,China)

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

出　　处：《材料工程》2018年第9期95-100,共6页Journal of Materials Engineering

基　　金：国家自然科学基金项目(51375491);重庆市基础科学与前沿技术研究项目(CSTC;2017jcyjAX0058);后勤工程学院青年基金项目(YQ16-420801)

摘　　要：在改进后的四球摩擦磨损试验机上分别考察添加剂含量、载荷和电磁场强度对含硫代磷酸铵盐(T307)摩擦学性能的影响,用扫描电子显微镜(SEM)和X射线光电子能谱仪(XPS)分析了磨斑的表面形貌及其表面典型元素的化学状态,并对摩擦学机理进行了探讨。结果表明:电磁场作用下,含T307润滑油中钢球的磨斑直径和油样的摩擦因数大于无磁场时的数值,这可能是因为电磁场不利于T307中P,S,O,N元素与金属表面的结合从而不利于金属表面生成摩擦化学反应膜;且电磁场会引起T307中的功能元素向金属基体扩散。并从添加剂的分子结构和所含的活性元素分析了电磁场的作用机理。Tribological properties of lubricating oil containing T307 with and without electromagnetic field affection were evaluated on a modified four-ball tribo-tester.The morphologies and chemical states of several typical elements on the worn surfaces were examined by scanning electron microscope(SEM)and X-ray photoelectron spectroscopy(XPS).Then the mechanisms were discussed.The results indicate that the wear scar diameters of worn surfaces lubricated with the T307-doped oils and coefficients of friction obtained from electromagnetic field were bigger than those obtained from non-electromagnetic field.It can be attributed to the negative effect of the electromagnetic field on the combination of elemental phosphorus,sulfur,oxygen and nitrogen in T307 with metal surface,which has an undesirable effect on the formation of the tribo-chemical reaction films,and resulted by the tribo-diffussion of functional elements in T307 to the subsurface induced by electromagnetism.Moreover,the influencing mechanism of electromagnetic field was analyzed considering the molecular structure and active elements.

关 键 词：硫代磷酸铵盐 电磁场 摩擦磨损性能 扩散 

分 类 号：TH117.3[机械工程—机械设计及理论]