Laboratory study of the tribological properties of friction modifier thin films for friction control at the wheel/rail interface

Effect of temperature on tribological properties of palm biodiesel

“…In another explanation, free fatty acids in biodiesel produced by high temperature oxidation improve lubricity [24,26]. At the same time, the existence of oxygen might accelerate the generation of inorganic oxides like Fe 3 O 4 , Fe 2 O 3 , which played important roles in the formation of lubrication film on the rubbing surface [31]. The obtained results demonstrate that oxidative products like free fatty acids which increase TAN number have significant impact in reducing wear while their corrosive effect is minor.…”

Influence of Different Application of Lubricants on Wear and Pre-existing Rolling Contact Fatigue Cracks of Rail Materials

“…The wheel/rail interfacial friction coefficient is strongly dependent on the rheological properties of third-body layer from different FMs. An engineered friction modifier has been used to significantly reduce the rail wear and eliminate the development of head check and surface cracks [24]. Hardwick et al [25] produced a new Tc/A wear curves under the dry, water and grease lubricated conditions and proved that less wear and deformation is found under the water condition.…”

Wear and damage transitions of wheel and rail materials under various contact conditions

“…Therefore, many researchers all over the world have explored 3 effective method for reducing the wear of wheel and rail materials. Some investigations have been carried out on wear effects of greases used in curves for lubrication [6,[11][12][13][14][15]. Using a lubricant significantly changes the wear rate of wheel/rail materials and the contact conditions for wear transitions [6].…”