Effect of Heat Treatments on Sliding Wear Behavior of Medium Carbon Steel

Abstract

The aim of this work is to study the effect of heat treatments on the wear rate ofthe medium carbon steel which included normalizing and different quenchingmedia (air, oil, salt solution at concentration %25). Quenching Include heating toa temperature of 870Co and then rapid cooling. A Pin -on-Disc technique was usedto measure the wear rate under dry sliding conditions with applied and differentsliding times with constant sliding speed of disc (641 r.p.m) and hardness of thesteel disc (48 HRC).The results show that the wear rate increases with applied loads, and withincreasing sliding time for all heat treated specimens it was found that the hardnessvalues of the quench specimens at salt solution is higher than that of normalizedspecimens and quenched specimens in the oil.