Sliding wear behavior of salt bath nitrocarburized medium carbon steel |
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Authors: | P Bala Srinivasan C V Krishnakumar N Krishnaraj |
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Affiliation: | (1) Department of Metallurgical Engineering, Regional Engineering, College Tiruchirappalli, 620 015, India;(2) Friction Wear Tech Co., 600 014 Chennai, India;(3) Consultant Metallurgist, 600 042 Chennai, India |
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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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Keywords: | carbon steel nitrocarburizing sliding wear behavior |
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