| 2026 №02 (03) |
DOI of Article 10.37434/sem2026.02.04 |
2026 №02 (05) |
"Suchasna Elektrometallurgiya" (Electrometallurgy Today), 2026, 2, 27-38 pages
Physical modeling of structure formation of the weld metal during heat treatment of welded joints of tram rails
I.V. Krivtsun
, R.S. Hubatyuk, O.S. Prokofiev, S.V. Rymar, E.O. Panteleimonov, V.A. Kostin, S.H. Hryhorenko, V.V. Zhukov, I.O. Honcharov, G.V. Kuzmenko
E.O. Paton Electric Welding Institute of the NAS of Ukraine
11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.
E-mail: elmag@paton.kiev.ua
Abstract
The results of physical modeling on model samples of structure formation of the weld metal during heat treatment of welded joints of tram rails are presented. Model samples in the form of rods were cut out of real welded joints of the head of rails of P65 type made of steel of K76F grade. The joints were made by automatic arc welding by the consumable guide using fluxcored filler welding wire of ANPM-3 grade. Parts of thermokinetic diagrams of the decomposition of supercooled austenite during continuous cooling of the metal of the weld made by arc welding and its zone of fusion with the base metal of the rail were constructed for the first time, which allowed us to determine changes in the metal structure and its hardness at different cooling rates. Physical modeling on model samples allowed establishing the parameters of heat treatment of welded rail joints, which improve the properties of the metal, increase its hardness and remove residual stresses. Heat treatment will have a positive effect on improving the operational properties and increasing the reliability and service life of welded rail joints, which is important during construction and repair of tram tracks.. 33 Ref., 1 Tabl., 8 Fig.
Keywords: welded joints of tram rails, heat treatment, physical modeling, thermokinetic diagrams, reliability increase
Received: 24.12.2025
Received in revised form: 30.03.2026
Accepted: 20.05.2026
Posted online: 27.05.2026
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Suggested Citation
I.V. Krivtsun, R.S. Hubatyuk, O.S. Prokofiev, S.V. Rymar, E.O. Panteleimonov, V.A. Kostin, S.H. Hryhorenko, V.V. Zhukov, I.O. Honcharov, G.V. Kuzmenko (2026) Physical modeling of structure formation of the weld metal during heat treatment of welded joints of tram rails. Electrometallurgy Today, 02, 27-38. https://doi.org/10.37434/sem2026.02.04Advertising in this issue:
