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Information × Registration Number 0218U000472, 0117U000724 , R & D reports Title Experimental study of technological modes of production and regeneration of railway wheels with a complex of optimal characteristics at different service conditions popup.stage_title Head Ostash Orest, Registration Date 14-02-2018 Organization Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine popup.description2 Based on the structural strength diagrams, it has been found that steels with a combination of solid-solution and dispersion hardening have an optimal combination of strength and fatigue crack growth resistance characteristics, in particular the cyclic fracture toughness Kfc. On the basis of the operational reliability diagram it was shown that the developed alloy steel with a content of 0.67 Si and 0.81 Mn needs to optimize the chemical and structural-phase composition by the criterion of wear resistance. Based on the characteristics of high-temperature strength and ductility, as well as structural strength diagrams and operational reliability diagrams that determine the inclination of wheel steels to form defects like slider and gap, as well as to wear, complex steel with the following chemical composition (wt%) is recommended: 0, 55-0.60 C; 0.85-0.95 Si; 0.85-0.95 Mn; 0.12-0.15V; 0.014-0.017 N; 0.018-0.022 Al; up to 0.005 S; up to 0.010 P. Product Description popup.authors Віра Володимир Володимирович Кулик Володимир Володимирович Перегінець Володимир Миколайович Чепіль Роман Володимирович Шаповалов Георгій Олександрович popup.nrat_date 2020-04-02 Close