International Journal of Railway Research

Mendeley  

Zotero  

Moradian K, Farzin M, Karevan M, Akbarzadeh S. Assessment and comparing the lubrication quality of solid lubricants made of graphite and MoS2 used for wheel flange/rail gauge corner lubrication by using pin-on-disc tribometer. IJRARE 2023; 10 (1) :61-68
URL: http://ijrare.iust.ac.ir/article-1-323-en.html

In light of the widespread application of solid lubricants for wheel flange lubrication and selecting the best composition of these products, three well-known lubricant blocks incorporating 30% graphite, 30% MoS2, and a mixture of 15% graphite and 15% MoS2 have been assessed using a pin-on-disc apparatus at pure sliding conditions. All the specimens, which were encapsulated in an identical thermosetting resin, were evaluated at a sliding speed (V=0.6 m/s) and two different normal loads (F=25, 50 N), followed by representing the results in terms of coefficient of friction graphs, retentivity graphs, and wear rate charts. According to the results, the lubricant which comprised a mixture of graphite and MoS2 was superior to the others, with the reduction of COF by 94%. Following that, the MoS2-based lubricant and graphite-based lubricant diminished COF by 91% and 88%, respectively.