The Lubricating Effectiveness of S-Mo Extreme Pressure Additive and Its Anti-wear Mechanism

• Published in: Journal of Wuhan University of Technology. Materials science edition Vol. 21; no. 3; pp. 79 - 81
• Main Authors: Qingzhen, Wen, Jinhua, Zhu, Shenguang, Gong, Wenjun, Chen
• Format: Journal Article
• Language: English
• Published: Wuhan Springer Nature B.V 01.09.2006; College of Science, Naval University of Engineering, Wuhan 430033, China
• Subjects: Studies; 抗磨机制; 有机钼配合物; 极限压力; 润滑油; 边界膜; organo-molybdenum compound; anti-wear; extreme pressure; lubrication; boundary film
• ISSN: 1000-2413; 1993-0437
• DOI: 10.1007/BF02840886

A kind of novel compound containing S and Mo elements was synthesized. Its chemical structure was characterized by elemental analysis, IR and 3MR. hs anti-wear property and the load-carrying capacity, as an extreme pressure （EP） additive of lubricating oil, were investigated using a four-bull tester. The experimentul results show that the additive exhibits a superior anti-wear property and a high load-carrying capacity . The presence of other additives does not interfere with the anti-wear prnperty of the extreme pressure additive. The influences of load and temperature on the propert） of the additive were examined. The possible mechanism uas investigated by means of sufface analysis of the tested steel ball specimen , using XPS. The lubricatian films formed on the rubbing surface are mainly composed of MoS2, MoO3 and MoO2.