The use of surface layer with boron in friction pairs lubricated by engine oils

Scientific Conference on Automotive Vehicles and Combustion Engines 2016

Szczypiski-Sala, W.^1 ; Lubas, J.^2

Cracow University of Technology, Poland^1

Dept of Combustion Engines and Transport, Rzeszow University of Technology, Poland^2

关键词: Bearing alloys;    Friction and wear;    Friction conditions;    Friction force;    Friction pair elements;    Geometrical structure;    Start-up phase;    Surface layers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/148/1/012053/pdf
DOI  :  10.1088/1757-899X/148/1/012053

来源: IOP

【 摘 要 】

The aim of the present work is to determine the influence of surface layers with boron and engine oil on the processes of friction and wear in friction pairs. The ring samples with borided surface layer cooperated under test conditions with counterparts made with CuPb30 and AlSn20 bearing alloys. During the tests, the friction pairs were lubricated with 15W/40 Lotos mineral oil and 5W/40 Lotos synthetic oil. The lubrication of friction area with Lotos mineral oil causes the reduction of the friction force, the temperature in the friction area and the wear of the bearing alloys under study, whereas the lubrication with Lotos synthetic oil reduces the changes in the geometrical structure of the cooperating friction pair elements. Lubrication of the friction area in the start-up phase of the friction pair by mineral oil causes faster stabilization of the friction conditions in the contact area than in the cause of lubrication of the friction pair by synthetic oil. The intensity of wear of the AlSn20 bearing alloy cooperating with the borided surface layer is three times smaller than the intensity of use of the CuPb30 alloy bearing.