An analysis of the effect of slide-to-roll ratio and surface velocity on wear using energy pulse and mean surface temperature approaches

The wear behaviour of a dry contact under different slide-re-roll ratios is studied experimentally and the results are analysed by using the energy pu lse approach and the mean surface temperature approach. it is found that th e energy pulse correlates with mild oxidative wear under dry conditions. Fu rthermore, there is a critical value of energy pulse where a marked transit ion from mild oxidative to severe wear occurs. The energy pulse can be used as a simple global parameter to relate mild wear under unlubricated condit ions to real operating conditions, and as an aid in the experimental design under sliding-rolling motions. Wear also increases with the calculated mea n surface temperature but the correlation between the two is less obvious. (C) 1999 Elsevier Science S.A. All rights reserved.