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Information × Registration Number 0210U000257, 0107U002968 , R & D reports Title Scientific fundamentalses of forming multicomponent carbide coaverages with a high complex of properties on steels popup.stage_title Head Kchignyak Viktor .G, Registration Date 01-02-2010 Organization Faculty of аircraft and space systems NTUU "KPI" popup.description2 Plant of exploration: coverages on a base of transition metals, carbon, nitrogen, oxygen on a surface 20,45, У8А, 9ХС, ШХ15, ХВГ, Х12М, Р6М5, put in the made reactionary space at the reduced pressure. The purpose of operation: · the assaying of physico-chemical requirements of shaping of high-performance complex cap layers on a base(ground) of carbides, nitrides, oxides of transition metals IV - VI of groups of a periodic system; · definition of phase makeup condensed and gas phases of multicomponent systems with participation of titanium, vanadium, chrome, carbon, nitrogen, chlorine, oxygen in a wide interval of temperatures and pressure; · installation of influence of makeup, structure, structure of coverages on properties of steel details and instrument; · development of physical measure of an estimate of durability and reliability of coverages for prediction of their serviceability with use of a method of a kinetic microhardness and making on this base of the recommendations on use of coverages with stable auxiliary performances and longevity. In operation the X-ray diffraction, microX-ray spectral assayings utilised microstructural, gauging a surface roughness is lead, some properties of coverages are defined. The chemical and phase makeup, structure of coverages on a base(ground) of carbides, nitrides, oxides of transition metals IV - VI of groups of a periodic system of the steels, put on a surface is defined. Is shown, that maximal endurance have the coverages on a base(ground) of carbides and titanium nitrides. Sequential Chrome-titaning rises operating temperatures of steel details and instrument on 200 To in comparison with titaningby workpieces. The considerable heightening of corrosion resistance of steel workpieces with multicomponent coverages of explored types in different hostile environments is marked. The complex expedient of hardening of a red-hard steel designed which consists of magnetic - abrasive handling and carbon-nitrogen hardening. The magnetic - abrasive handling allows to improve parallax purity of the instrument from a red-hard steel, rises a microhardness of surface layer. Is established, that the химико-heat treatment - carbon-nitrogen hardening, lead immediately after МАТ, anchors hardening effect, allows considerably to raise endurance of the instrument from a red-hard steel. The width strong of surface layer after a double cycle magnetic - abrasive and химико-heat treatment depends on parameters by intermediate МАТ and reaches(achieves) 350-550 microns, a surface figure considerably increases, the geometry of the instrument from high speed steel stationary values Р6М5 is improved. COVERAGE, MICROSTRUCTURE, CHEMICAL COMPOSITION, PHASE MAKEUP, DIFFUSION, CARBIDE-STABILIZING ELEMENTS, CARBON, NITROGEN, PROPERTIES, MICROHARDNESS, ENDURANCE, FIRE RESISTANCE, CORROSION STABILITY, Product Description popup.authors Аршук Марина Віталіївна Бобін Андрій Борисович Бобіна Марина Миколаївна Дегула Андрій Іванович Заболотна Оксана Курило Надія Анатоліївна Левашов Сергій Лоскутова Тетяна Володимирівна Медова Ірина Назаренко Євгенія Іванівна Приходько Руслан Семененко Ігор Смокович Ірина popup.nrat_date 2020-04-02 Close