Table 2 Operating conditions of friction and contact temperature measurements. Hertzian pressure calculated for the uncoated system
|  | Normal load FN in N | Hertzian pressure pH in MPa* | Sum velocity v∑ in m/s | Slip ratio s in % |
|---|---|---|---|---|
Friction curve measurements | 435 | 400 | 1, 2, 4 | 0, 2, 5, 10, 20, 30, 40, 50 |
Contact temperature measurements | 251, 446 | 300, 400 | 2 | 0, 10, 20, 30 |