The rheological and tribological properties of calcium sulfonate complex greases

作     者：Zeyun WANG Yanqiu XIA Zhilu LIU 

作者机构：School of Chemistry and Chemical EngineeringNingxia UniversityYinchuan750021China State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou730000China School of Energy Power and Mechanical EngineeringNorth China Electric Power UniversityBeijing210094China 

出 版 物：《Friction》 (摩擦（英文版）)

年 卷 期：2015年第3卷第1期

页      面：28-35页

核心收录：

学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the open project of State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences(1211) Natural Science foundation of Ningxia University(ZR1216) 

主　　题：calcium sulfonate complex greases tribological properties rheology viscoelasticity 

摘      要：In this study,we synthesized two types of calcium sulfonate complex greases(barium soap and calcium soap)and investigated their physical,rheological,and tribological properties in *** test results showed that the evolution of their linear viscoelasticity functions with frequency were quite similar to those of traditional lubricating ***,these two calcium sulfonate complex greases had good friction-reducing and antiwear properties at room temperature and at 150°*** addition,by adding an organic molybdenum compound(MoDTC)to the base greases,we obtained a very low friction coefficient(0.065)for one of the greases(calcium soap)at 400 N and 500 N(maximum Hertzian pressures of 3.47 GPa and 3.74 GPa,respectively)at 150°C.X-ray photoelectron spectroscopy(XPS)analysis showed that the tribofilm was composed of some complex oxide species and CaCO3 that had formed on the worn surface.