| 2008 №09 (06) | 2008 №09 (08) |
The Paton Welding Journal, 2008, #9, 30-33 pages
Performance of flash butt welded joints on railway frogs
S.I. Kuchuk-Yatsenko1, Yu.V. Shvets1, A.V. Kavunichenko1, V.I. Shvets1, S.D. Taranenko2, V.A. Proshchenko2
1E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.2Open Joint Stock Company «Dnepropetrovsk Railway Switch Factory», Dnepropetrovsk, Ukraine
Abstract
Results of investigation into performance of joints on railway frogs, made by flash butt welding through an intermediate insert of steel 12Kh18N10T, are presented. It is shown that strain hardening of austenitic components of a welded joint occurs during the operation process. This leads to levelling of hardness over the roll surface, thus limiting the local wear. Investigations of structural changes in the joint resulting from operation under cyclic loading and at a low temperature have been carried out.
Keywords: flash butt welding, railway frog, pulse flashing, Hadfield steel, steel M76, austenitic insert, performance of joints
References
1. Kuchuk-Yatsenko, S.I., Shvets, Yu.V., Dumchev, E.A. et al. (2005) Flash butt welding of railway frogs with rail ends using an intermediate insert. The Paton Welding J., 1, 2–4.2. Kuchuk-Yatsenko, S.I., Didkovsky, V.V., Bogorsky, M.V. et al. Method of flash butt welding. Pat. 46820 Ukraine. Publ. 17.06.02.
3. Kuchuk-Yatsenko, S.I., Shvets, Yu.V., Kavunichenko, A.V. et al. (2007) Influence of the width of stainless steel insert on performance of joints of railway frogs with rail ends. The Paton Welding J., 3, 2–5.
4. Bogachev, I.N., Rozhkova, S.B. (1963) Strengthening of austenitic steels in cold plastic deformation. Izvestiya Vuzov. Chyorn. Metallurgiya, 7, 162–168.
5. Kuchuk-Yatsenko, S.I., Shvets, V.I., Gordan, G.N. et al. (2006) Features of formation of structure of joints of rail steel M76 to steel 110G13L made by flash-butt welding. The Paton Welding J., 1, 2–8.