TY JOUR TI Investigation of Crack Appearance and Development at Strengthening Rolling Stock Parts by Inductive-Metallurgical Method KW Induction-metallurgical method KW rolling stock parts KW strengthening KW welded layer KW wear-resistant coating KW automatic coupler KW resource KW service age JO Bulletin of scientific research results AU Samarkina, I.K. AU Sobolev, A.A. AU Bityuckiy, N.A. AU Pavel'ev, I.V. AU Stopnickiy, S.A. PY 2023 IS 2023 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"