Axle gear oils: Friction, wear and tribofilm generation under boundary lubrication regime

被引：12
|
作者：
Hamtnami, Maroua [1 ,2 ]
Rodrigues, Nuno [3 ]
Fernandes, Carlos [1 ]
Martins, Ramiro [1 ]
Seabra, Jorge [3 ]
Abbes, Mohamed Slim [2 ]
Haddar, Mohamed [2 ]
机构：
[1] Univ Porto, INEGI, Campus FEUP,Rua Dr Roberto Frias 400, P-4200465 Oporto, Portugal
[2] Univ Sfax, Natl Engineers Sch Sfax, Unit Mech Modelling & Mfg, W-3038 Sfax, Tunisia
[3] Univ Porto, FEUP, Rua Dr Roberto Fries S-N, P-4200465 Oporto, Portugal
来源：
TRIBOLOGY INTERNATIONAL | 2017年 / 114卷
关键词：
Boundary lubrication; Friction and wear; Tribofilms; XPS surface analysis; Surface topography; Ferrographic oil analysis; TRANSMISSION ELECTRON-MICROSCOPY; BEARING SURFACES; REDUCTION; TORQUE;
D O I：
10.1016/j.triboint.2017.04.018
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The internal friction torque measurements in Cylindrical Roller Thrust Bearings (RTB) lubricated with axle gear oils under boundary film conditions were performed using an axial rolling bearing test rig generating tribofilms. The X-ray photoelectron spectroscopy (XPS) was used to characterize the tribofilms formed on the bearing rollers and raceways. After the tests, wear debris were found on the oil samples which lubricated the surface of the roller bearing raceways for that surface topography measurements and oil analysis (ferrography) were mandatory to measure and to visualize the occurring wear. The results obtained indicate that axle gear oil formulations and their additive packages have got a significant influence in controlling roller bearing friction and wear under boundary film lubrication.
引用
收藏
页码：88 / 108
页数：21
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