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Information × Registration Number 0218U001422, 0116U000826 , R & D reports Title Physical and mechanical properties of nitride layered coatings based on multi-element alloys popup.stage_title Head Beresnev Vyacheslav M., Registration Date 13-03-2018 Organization Kharkov National University named after V.N. Karazin popup.description2 The subject of research is the effects of the negative displacement potential on the substrate, partial nitrogen pressure and annealing conditions on the chemical and structural state, as well as properties of vacuum-arc nitride coatings. The research focuses on coatings based on MoN/CrN, TiN/ZrN, (TiZrNbTaHf)N/MoN, (Ti,Al,Si)N/МеN, and (TiZrNbTaHf)N/WN systems. In (TiZrNbTaHf)N/MoN and (TiZrNbTaHf)N/WN multilayered nitride coatings, in all deposition modes, phases with face-centered cubic lattices are formed in both coating layers. Coatings of the (TiZrNbTaHf)N/WN system possess a hardness of 44 GPa, whereas coatings of the (TiZrNbTaHf)N/MoN system possess a hardness of 41 GPa. A reduction of working nitrogen pressure from 0.5 Pa to 0.09 Pa leads to nitrogen depletion in MoN/CrN coatings and structural transformation in coatings. The hardness of these coatings goes up to 38 GPa and decreases with a reduction of nitrogen pressure in deposition and in application of a negative displacement potential inducing selective secondary dispersion. An analysis of the effect of deposition conditions on formation and thermal stability of multilayered vacuum-arc coatings based on TiAlSi layers was carried out. The use of other layers with CrN, MoN, and ZrN in bilayer multiperiod compositions does not change the type of lattice in nitride layers. Product Description popup.authors В. Береснєв В. Кіріченко В. Чишкала П. Сребнюк С. Гранкін С. Литовченко Т. Івко У. Нємченко popup.nrat_date 2020-04-02 Close