Operational characteristics of ion plasma titanium-containing coatings on BYTC carbide plates

The technological characteristics of BYTC carbide inserts produced by the Institute of Metal Technology of the National Academy of Sciences of Belarus with TiN, TiAlSiCr, TiAlN, and TiAlCrN plasma coatings have been studied. It has been shown that the main phase of the coatings has a cubic structure, which provides them with high hardness (TiN – HV 2414; TiAlSiCr – HV 3570; TiAlN – HV 2692; TiAlCrN – HV 2647) and a low coefficient of friction (0.25–0.40). A 2.0–4.0 μm thick solid film with a microhardness of 2414–3570 HV was applied to a carbide plate using vacuum deposition (PVD) technology. It has been established that the most promising coatings for industrial use are TiN coatings due to their relative simplicity of technology and lower cost of application, as well as their relatively long service life, which ensures an increase in the durability of BYTC PNUA 110408 carbide inserts produced by Institute of Metal Technology of the National Academy of Sciences of Belarus with a TiN coating by a factor of 4.1 when processing 08ХГСДП corrosion-resistant steel. The developed coating can be used in the manufacture of metal-cutting carbide tools (milling cutters, drills, plates, etc.).