Wear Behavior of White Layer in Plasma Nitrided H13 Steel at Ambient and Elevated Temperatures
In this study, AISI H13 steel was plasma nitrided in two different atmospheres, containing 25%N2-75%H2 and 4%N2-96%H2 at a constant temperature of 530oC and 6h-holding time. Dry wear behavior of nitrided samples was determined with pin-on-disc method at 25oC and 500oC, under 10N and 30N loads. The results indicated that the nitrided steels, which had a thin multiple phases white layer (produced at 4%N2-96%H2 atmosphere), didn’t have any wear resistance in ambient and elevated temperatures. However, the nitrided steels, having thick single phase white layer (produced at 25%N2-75%H2 atmosphere), showed better wear resistance in ambient temperature than in elevated temperature.
M. S. J. Hashmi, B. S. Yilbas and S. Naher
A. Mahmoudi and M. Esmailian, "Wear Behavior of White Layer in Plasma Nitrided H13 Steel at Ambient and Elevated Temperatures", Advanced Materials Research, Vols. 83-86, pp. 41-48, 2010