Abstract
In this work vanadium carbides (VC) and niobium carbide (NbC) coatings were produced on AISI D2 tool steels system using the thermo reactive deposition diffusion technique (TRD). The experiments were performed in a salt bath (borax) with dissolution of ferro-niobium, ferro-vanadium and aluminium at temperature treatment of 1000°C during 3hours. The coatings obtained were characterized by scanning electron microscopy and X-ray diffraction. The tribological behavior was studied by the technique of pin on disc to define the coefficient of friction and scratch technique to determine the adhesion level. Results were compared with uncoated substrates, a decrease of the friction coefficient and an increase in the hardness was observed.
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