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Information × Registration Number 0216U006586, 0112U002773 , R & D reports Title Optimization of structural-phase state and fatigue crack growth resistance characteristics of wheel steels to reduce the damaging of the rolling surface of high-strength railway wheels popup.stage_title Head Ostash Orest, Registration Date 20-04-2016 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 The effect of complex alloying, graphite phase and modes of thermomechanical treadment on resource characteristics of eutectoid, pre- and hypereutectoid graphitized steels (GS) and wheel steel of grade K is studied. The influence of the carbon phase on wear resistance of GS is estimated. Samples of eutectoid, pre- and hypereutectoid after annealing GS in granular perlite and after normalization and tempering at 500 С in a couple with counter-body made from the railway rail head is tested. Resource features of the new wheel steel of grade K, which solid-solution strengthening is reached due to the increased silicon content, is researched. It is shown that increasing the content of manganese and silicon steel of grade K compared with a known grade 2 wheel steel causes the increase in ultimate tensile strength ?B by 10% at 20 С and 50% at 500 С, and also 1.3 reduction time of relative elongation at 500 ... 800 С. Steel of grade K has a higher resistance to the formation of defects of type slide plate on the wheels rolling surface. Product Description popup.authors Андрейко Ігор Михайлович Віра Володимир Володимирович Горак Ігор Степанович Грибовська Вікторія Іванівна Кулик Володимир Володимирович Пронік Василь Михайлович popup.nrat_date 2020-04-02 Close