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Information × Registration Number 0212U008344, 0112U005109 , R & D reports Title Estimate of serviceability of new graphitized steels for high-strength railway wheels popup.stage_title Head Kulyk Volodymyr, Registration Date 10-01-2013 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 The graphitized steel which has a sufficient level of the characteristics of strength, plasticity and fatigue crack growth resistance which corenspond the characteristics of Class C wheel steels foreign production is proposed. The obtained temperature dependence of mechanical properties of investigated steels show that under emergency braking when in the contact area the essential increase of the material temperature occurs for wheel KP-2 and KP-T steels there are more favorable conditions for the formation of defects such as flats on the rolling surface as compared with the graphitized steel. It is found that at low temperatures (down to -40 0C) the graphitized steel is not liable to the low temperature embrittlement to compare with wheel KP-2 and KP-T steels. It is shown that the effect of the corrosion environment on fatigue crack growth resistance characteristics of the graphitized steel is ebsent as compared to the traditional wheel steels, which show a slightly negative effect of the corrosion environment on the fatigue crack growth kinetics. Obtained research results demonstrate that graphitized steels are the prospective material for railway wheels. Product Description popup.authors Віра Володимир Володимирович Ваврух Валентина Василівна popup.nrat_date 2020-04-02 Close