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Information × Registration Number 0221U106963, 0121U100591 , R & D reports Title Scientific substantiation and development of technological parameters of heat treatment of railway wheels which provide uniform structure on section of a rim popup.stage_title Head Babachenko Oleksandr І., Доктор технічних наук Registration Date 23-12-2021 Organization Institute of Ferrous Metallurgy. ZI Nekrasov of the National Academy of Sciences of Ukraine popup.description2 Regularities of influence of chemical inhomogeneity on features of formation of final structure and a complex of mechanical properties of a rim of a railway wheel are established. The kinetics of austenite decay of steels for railway wheels of different chemical composition has been studied, taking into account chemical inhomogeneity and influence on mechanical properties (hardness). Experimentally in laboratory conditions according to own technique the interval of admissible cooling rates of superficial and central sites of a rim of wheels of various chemical structure at the accelerated cooling is defined: the maximum admissible cooling rates of a skating surface high mechanical properties. On the basis of complex composition criteria the regularities of influence of chemical composition and cooling rate of steels for railway wheels on their mechanical properties are established. It is shown that in order to achieve a uniform structural state across the rim cross section for steels for railway wheels, it is necessary to use differential cooling during heat treatment, as the existing technology does not provide cooling with optimal speeds. Recommendations for improving the modes of accelerated cooling in heat treatment of railway wheels of different chemical composition have been developed, taking into account the modernization of equipment at the thermal section of the wheel-rolling shop of PJSC "INTERPIPE" and their industrial testing. Product Description popup.authors Babachenko Oleksandr І. Bahrova Yuliia St. Dementieva Zhanna A. Klynova Olha P. Kononenko Ganna A. Kuksa Oleh V. Parusov Eduard V. Parusov Oleh V. Podolskyi Rostyslav V. Safronov Oleksandr L. Safronova Olena А. Snihura Iryna R. Tohobytska Daria M. Topol Serhii О. Chuiko Igor M. Shvetz Lyudmyla I. Shevchenko Valentyna M. Shpak Olena A. popup.nrat_date 2021-12-23 Close