Abstract
In this study, AISI 8620 steel samples were implanted with nitrogen using plasma immersion ion implantation (PIII) at 320, 380 or 450°C. In addition, PIII was used for simultaneous implantation of carbon and nitrogen into the steel at 380 or 450°C. Treated and untreated samples were studied by wear friction testing, microhardness measurement, atomic force microscopy, SEM study and glancing angle X-ray diffraction diagnosis. Experimental results indicated that the friction coefficient increased after PIII treatment and wear reduced by a factor of 4–60 for PIII treatment with pure nitrogen, although carbon + nitrogen coimplantation increased the wear rate.
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