Abstract
High-quality multicomponent diffusion boride and carbide layers on steel 40Cr and 25CrMnTi cemented steel were obtained by processing from 3 to 6 hours at 950 ° C in melts. The melts contained borax and ferroalloy additives. Chrome, vanadium and titanium were alloying elements. Comparative tests of heat resistance and corrosion resistance of diffusion coatings are carried out. Samples with carbide coatings Cr + V and Cr + V + Ti had the highest heat resistance. Samples with a diffusion layer based on iron borides and alloying elements showed the best corrosion resistance during long-term tests in a 10% HCl solution.
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