Influence of low temperature environment on the adhesion characteristics of wheel-rail contact

rail fatigue and wear are degradation processes which drive rail maintenance and replacement, and hence have economic importance in railway operation. The underlying mechanisms of these processes are described, and the importance of their interaction in determining the life of the rail is discussed. Methods for detailed prediction of crack growth rate and rail wear rate are introduced, providing a link between vehicle loads and the rail damage produced.

Rail surface fatigue and wear

Relationship between surface oxide layer and transient traction characteristics for two steel rollers under unlubricated and water lubricated conditions

This paper surveys advances in the understanding and modelling of wheel–rail creep forces. The main focus is placed on tribological aspects, for which significant progress was made in the past two ...

https://www.tandfonline.com/doi/pdf/10.1080/00423114.2021.1912367

Challenges and progress in the understanding and modelling of the wheel–rail creep forces

Influence of axle load on wheel/rail adhesion under wet conditions in consideration of running speed and surface roughness

The effects of factors such as rolling speed, contact load, water temperature, and surface roughness on the adhesion coefficient between wheel and rail under wet conditions were investigated theoretically by adopting elasto-hydrodynamic lubrication theory and rough surfaces contact theory [1]. It was found that the water temperature and the surface roughness greatly affect the adhesion performance comparing the other factors. This paper describes an experimental investigation on the effect of water temperature on the adhesion coefficient to verify the significant effect of the water temperature on the adhesion coefficient. The experimental results indicated that a rise in water temperature causes an increase in the adhesion coefficient, which was qualitatively consistent to the numerically calculated results in the previous paper [1].

https://journals.sagepub.com/doi/pdf/10.1243/13506501JET75

H Chen

Papers

Effect of water temperature on the adhesion between rail and wheel