The Paton Welding Journal, 2025, №11

2025 №11 (01)

DOI of Article 10.37434/tpwj2025.11.02

2025 №11 (03)

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The Paton Welding Journal, 2025, #11, 10-18 pages

Research into technological processes of treatment of metals, alloys and welded joints using electromagnetic field (Review)

L.M. Lobanov¹, L.I. Nyrkova¹, M.O. Pashchyn¹, O.L. Mikhodui¹, O.M. Tymoshenko¹, N.L. Todorovych¹, O.M. Syzonenko³, I.P. Kondratenko², V.V. Chopyk², O.M. Karlov²

¹E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: svarka2000@ukr.net
²Institute of Electrodynamics of the NASU 56 Beresteiskyi Prosp., 03057, Kyiv, Ukraine
³Institute of pulse processes and technologies of the NASU 43a Bohoyavlensky Prosp., 54018, Mykolaiv, Ukraine

Abstract
An analysis of promising technologies for improving the mechanical characteristics and the stress states of metal materials and welded joints based on the use of electromagnetic fields and their derivatives, such as electrodynamic pressure force, eddy currents, and shock waves, was carried out. The process of electrohydropulse treatment by high-energy discharge (EPT HED EHIPD) using a hydrocarbon liquid for the production of polydisperse mixtures used for alloying the weld metal of welded joints as part of flux-cored wires is considered. The positive effect of micro-additives of the Ti‒TiC system modifier obtained by EPT HED on the operational properties of the deposited metal of the 25Kh5FMS tool steel type was determined. It is shown that treatment with a pulsed electromagnetic field (PEMF) improves the residual stress states of welded joints. New process diagrams for the application of electrodynamic treatment (EDT) of welded joints are considered. The advantages of PEMF and EDT of the weld metal in the welding process in comparison with treatment at room temperature are proved. The mechanism of surface hardening of 25KhGNMT steel as a result of its pulsed barrier discharge treatment (PBD) was investigated. It is proved that the PBD increases the dislocation density and disperses the microstructure, which has a positive effect on the mechanical characteristics of steel. The prospects for the use of PBD for non-destructive testing of residual stress states of welded joints are considered.
Keywords: welded joint, electromagnetic field treatment, electrodynamic treatment, residual stresses, fusion welding, surface hardening, titanium carbide, polydisperse mixtures, residual deformations, aluminium alloys, structural steels, dislocation density

Received: 09.06.2025
Received in revised form: 07.08.2025
Accepted: 03.11.2025

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Suggested Citation

L.M. Lobanov, L.I. Nyrkova, M.O. Pashchyn, O.L. Mikhodui, O.M. Tymoshenko, N.L. Todorovych, O.M. Syzonenko, I.P. Kondratenko, V.V. Chopyk, O.M. Karlov (2025) Research into technological processes of treatment of metals, alloys and welded joints using electromagnetic field (Review). The Paton Welding J., 11, 10-18.

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