The dependence of the boride layer thickness and the microstructure of the boride layer with sub-boride zone on steel composition

摘要

The influence of the carbon content of steel (0.15, 0.45 and 1.0/100) and the present alloying elements silicon and chromium, on the thickness and morphology of the formed Fe_2B boride layer as well as on the microstructure of the transitional zone next to the Boride layer (sub-boride layer) were investigated. Bording was performed using for Boriding granulate in the temperature interval 850 to 1050 deg. C for 2 to 9 h. Besides optical Microscopy and quantitative metallography, microchemical analysis was used in the Investigations.