Abstract
Salt bath nitrocarburizing is a well-known thermochemical diffusion process for enhancing the tribological and corrosion properties of ferrous components. The current work describes the role of a compound layer developed during nitrocarburizing, both in the ferritic and austenitic regimes of Fe-N-C system, on the sliding wear behavior of a medium carbon steel. The wear behavior of the nitrocarburized steel discs was assessed by the pin-on-disc tests (ASTM G 99-99) under different normal loads running against a hardened SAE52100 pin. It was observed that the compound layer on the surface not only controlled the wear rate but also resisted the adhesive wear/transfer of material from pin to disc, aside from providing low-friction coefficients.
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Srinivasan, P.B., Krishnakumar, C.V. & Krishnaraj, N. Sliding wear behavior of salt bath nitrocarburized medium carbon steel. J. of Materi Eng and Perform 11, 509–515 (2002). https://doi.org/10.1361/105994902770343746
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DOI: https://doi.org/10.1361/105994902770343746