Characteristics of oxidative wear and oxidative mild wear

Dry sliding tests were performed for 45, 4Cr5MoSiV1 steels and 3Cr3Mo2V cast steel at 200 and 400 degrees C. The wears at 200 and 400 degrees C are of oxidative wear characteristic due to tribo-oxides formed on worn surfaces. However, the wear at 200 degrees C presents different wear behaviors and characteristics from the one at 400 degrees C. The wear at 200 degrees C is a typical oxidative mild wear, but the wear at 400 degrees C is beyond oxidative mild wear, here called oxidative wear. The characteristics of oxidative mild wear and oxidative wear were clarified. (C) 2013 Elsevier Ltd. All rights reserved.