Figure 9
A line graph shows contact pressure on the vertical axis in units of newtons per square meter (N/m2) ranging from 0 to 3 times 10 to the power of 9. The horizontal axis represents slip velocity in meters per second (m/s) ranging from 0 to 1. The graph is divided into four regions with different wear coefficients. Region 1, at the top, shows high contact pressure with a wear coefficient range of 300 to 400 times 10 to the power of -4. Region 2, on the left, indicates tread contact with a wear coefficient range of 1 to 10 times 10 to the power of -4. Region 3, in the center, has a wear coefficient range of 30 to 40 times 10 to the power of -4. Region 4, on the right, shows a wear coefficient range of 1 to 10 times 10 to the power of -4. The dashed line represents the contact pressure trends across these regions.Archard wear maps for tread and flange contact. Source(s): Archard (1953)