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Information × Registration Number 0216U000789, 0115U004014 , R & D reports Title Development and experimental approbation of effective methods of operating resource evaluation of high-strength railway wheels at their design and production stages popup.stage_title Head Kulyk Volodymyr, Registration Date 03-03-2016 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 It is found that solid-solution strengthening due to the increased silicon content (steel grade K) promotes the increase of resistance to formation on the rolling surface and leveling the fatigue crack growth resistance of wheel rims compared to the known steel grades 2 and T. However, for cyclic crack resistance, including after thermo-force impact during braking, such an advantage is not noticed. It is shown that carbo-nitride hardening has a positive effect on strength, impact toughness and crack growth resistance of wheel steel. Considering the obtained data on strength, crack growth resistance and contact damage resistance of the investigated steels, a wheel steel with low carbon content (0.58 ... 0.60%) and solid-solution and nitride hardening due to a higher content of alloying elements (up to 1% Si, 1% Mn, up to 0,2% V, up to 0,015% N), and also creation of bainitic-martensitic matrix structure (66% bainite + 34% martensite) under heat treatment developed by the developed regime is recommended to be used for high-strength railway wheels of new generation. Product Description popup.authors Андрейко Ігор Михайлович Віра Володимир Володимирович Осташ Орест Петрович Перегінець Володимир Миколайович Чабан Михайло Іванович Шаповалов Георгій Олександрович popup.nrat_date 2020-04-02 Close