Аңдатпа
The article considers the results of research Ti3SiC2-based powder coatings obtained by detonation spraying on the surface of 119/Y9 (equivalent to N9) tool steel. It is determined the phase composition of coatings changes during detonation spraying as a result of the decomposition of Ti3SiC2powder into TiC. The influence of thermal annealing on the phase composition and corrosion resistance of Ti3SiC2/TiC multiphase coatings was studied. Vacuum thermal annealing (10-2 Pa) was performed in the temperature interval of 700-900 °C for 1 hour. The results of corrosion tests showed that the corrosion rate of the coated steel sample after annealing 800 °C is 5.5 times less than by a comparison of the uncoated steel 119.