Abstract
A set of H13 steels were nitrocarburized with the aim of improving their performance as matrices and pins. The nitrocraburizing process was performed in an ETSA liquid salt bath furnace at 570°C for 45, 60, 90, 120, 150 and 180 minutes in order to evaluate the effect of time during the nitrocarburizing treatment on the quality of the nitrocarburizing layer. Microstructural evolution of the compound and diffusion layers were studied by scanning electron microscopy and by X-ray diffraction analysis. From microstructural characterization, it was observed mainly a continuous nitrocraburizing ε-Fe2–3(C,N) layer with nitrocraburizing times between 45 to 60 minutes showing better wear performance as compared with specimen with nitrocarburizing times between 90 to 180 minutes.
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