Abstract
This paper studies the formation of iron boride on the surface in ductile iron 100-70-03 class exposed to a thermochemical treatment boron dehydrated paste. The formation of iron boride layers Fe2B/FeB-type were obtained at temperatures of 1173 K, 1223 K and 1273 K, with exposure times of 8 hours of treatment. The study consisted in evaluating the growth kinetics of the boride layer on the surface of ductile iron boriding. Also the boride layers were determined by the XRD method, EDS. Also evaluated fracture toughness technique Vickers microindentation 15 and 30 microns from the surface with different loadings of iron boride microindentation formed on the surface.
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