Experimental and Numerical Simulation of Wheel-Rail Adhesion and Wear Using a Scaled Roller Rig and a Real-Time Contact Code

Table 2

Values of the wear coefficient according to [22].

Wear coefficient 𝐾	𝑣slip<0.2 m/s	0.2 m/s<𝑣slip<0.7 m/s	𝑣slip>0.7 m/s
𝑃>0.8 ∗ H MPa	𝐾1=300−400×10^−4 m/km
𝑃<0.8 ∗ H MPa	𝐾2=1−10×10^−4 m/km	𝐾3=30−40×10^−4 m/km	𝐾4=1−10×10^−4 m/km