Effects of temperature, sliding velocity and non-friction time on severe-mild wear transition of iron

The effects of non-friction time along with temperature and sliding velocity on the distance to achieve severe-mild wear transition are discussed using a twin-ring sliding type wear test rig. It became clear that as the non-friction time increased, while keeping the same velocity, the severe-mild wear transition distance increased. On the other hand, the transition distance from severe to mild wear decreased, as the sliding velocity decreased or as the specimen temperature increased. From these results, it is concluded that the low sliding speed accelerates the severe-mild wear transition by increasing the real friction time at the real area of contact.