Influence of Additive Chemistry on the Tribological Behavior of Steel/Copper Friction Pairs

Lubricants

Gaiqing Zhao¹  Rui Ma¹  Yunlong Chen¹  Weimin Li¹  Huaigang Su¹  Yanxing Qi¹  Wenjing Lou¹ 

[1] State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;

关键词: anti-wear additives;    ionic liquid;    tribology;    steel-copper;   

DOI  :  10.3390/lubricants10050091

来源: DOAJ

【 摘 要 】

Tribological properties of five anti-wear additives for a steel-copper contact were investigated. It was found that the tribological performances are closely related to the molecular structure of additives. The protic ionic liquid anti-wear additive AW316 exhibits the best tribological performance with the lowest mean friction coefficient of 0.082, and the smallest wear volume, which is more than one order of magnitude smaller than base oil. Transmission electron microscope (TEM) and X-ray photoelectron spectroscopy (XPS) tests reveal that a 10–15 nm thickness uniform boundary lubrication film composed of oxides, phosphates, and cuprous oxide was formed on the copper disc, which was responsible for its outstanding tribological performances.

【 授权许可】

Unknown