Wear Behavior of White Layer in Plasma Nitrided H13 Steel at Ambient and Elevated Temperatures

Abstract:

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.

• Periodical: Advanced Materials Research (Volumes 83-86)
• Pages: 41-48
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.83-86.41
• Online since: December 2009
• Authors: Amir Mahmoudi, Mohamad Esmailian
• Keywords: Dry Wear, Friction, Steel Plasma Nitriding

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