TY JOUR TI Investigation of Impact Toughness of Cast Steel for Load-Bearing Parts of Freight Cars KW impact toughness of cast steel KW cast load-bearing parts KW freight car bogie JO Proceedings of Petersburg Transport University AU Danilenko, D.V. AU Efimov, V.P. AU Chernov, V.A. AU Komichenko, S.O. AU Chernova, T.M. PY 2024 IS 21 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"