Automatic Welding, 2023, №01



2023 №01 (01)

DOI of Article 10.37434/as2023.01.02

2023 №01 (03)

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Avtomaticheskaya Svarka (Automatic Welding), #1, 2023, pp. 11-15

Influence of the frequency of external electromagnetic field on the structure of 09G2S steel welded joints

O.D. Razmyshlayev, S.Yu. Maksymov, O.M. Berdnikova, O.O. Prylypko, O.S. Kushnarjova, T.O. Alekseenko

E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua

Features of metal structure in 09G2S steel welded joints were studied in welding with application of a longitudinal external electromagnetic field. The influence of field frequency (f = 2; 12; 50 Hz) on phase composition, microstructure and microhardness of welded joint metal was studied. It was found that significant changes of structural parameters in the weld metal and in the subzones of the heat-affected zone (HAZ) take place in the studied frequency range. The influence of frequency of electromagnetic impact in low-alloyed steel welding is more pronounced in the metal of the weld and HAZ in the overheated subzone (coarse grain). Application of f = 12 Hz ensured a uniform microhardness level both in the weld metal and in the HAZ subzones, as well as grain structure refinement in the overheated subzone (І HAZ) of 09G2S steel welded joint. 15 Ref., 2 Tabl., 3 Fig.
Keywords: 09G2S steel, welded joints, external electromagnetic impact, longitudinal magnetic field, frequency, heat-affected zone, phase composition, microstructural parameters, microhardness


Received: 16.12.2022

References

1. Ryzhov, R.N., Kuznetsov, V.D. (2006) External electromagnetic effects in the processes of arc welding and surfacing (Review). The Paton Welding J., 10, 29-35.
2. Kuznetsov, V.D., Ryzhov, R.N. (2005) Choice of optimal parameters of external electromagnetic action in arc methods of welding. The Paton Welding J., 6, 27-31.
3. Grabin, V.F. (1982) Metals science of fusion welding. Kyiv, Naukova Dumka [in Russian].
4. Ryzhov, R.N. (2007) Influence of pulse electromagnetic effects on process of formation and crystallization of welds. Svarochn. Proizvodstvo, 2, 56-58 [in Russian].
5. Ahieieva, А.D. (2019) Rational Using of the Controlling Longitudinal and Transverse Magnetic Fields at Arc Welding and Surfacing. IOP Conference Series: Materials Sci. and Engineering, 582. https://doi.org/10.1088/1757-899X/582/1/012054
6. Korab, N.G., Kuznetsov, V.D., Chernysh, V.P. (1990) Evaluation of effect of controlling magnetic field on crystallization in arc welding. Avtomatich. Svarka, 2, 33-36 [in Russian].
7. Abralov, M.A., Abdurakhmanov, R.U. (1982) On refinement mechanism of weld metal primary structure under electromagnetic action. Ibid., 2, 18-21 [in Russian].
8. Razmyshlyaev, A.D., Ageeva, M.V. (2018) On mechanism of weld metal structure refinement in arc welding under action of magnetic fields (Review). The Paton Welding J., 3, 29-33. https://doi.org/10.15407/as2018.03.05
9. Razmyshlyaev, A.D., Ageeva, M.V. (2014) On optimality of input devices of transverse magnetic field with regard to processes of arc welding and surfacing. In: Proc. of Int. Sci.- Pract. Conf. on Innovative Technologies and Economics in Mechanical Engineering. Vol.1, 22-23 May, 2014, 83-88.
10. Goldshtein, M.I., Litvinov, B.M., Bronfin, V.S. (1986) Physics of metals of high-strength alloys. Moscow, Metallurgiya [in Russian].
11. Romaniv, O.N. (1979) Fracture toughness of structural steels. Moscow, Metallurgiya [in Russian].
12. Boldyrev, A.M., Birzhev, V.A., Chernykh, A.V. (1992) To calculation of hydrodynamic parameters of liquid metal on bottom of welding pool in arc welding. Svarochn. Proizvodstvo, 2, 31-33 [in Russian].
13. Boldyrev, A.M., Birzhev, V.A., Martynenko, A.I. (2008) Examination of influence of alternating axial magnetic field on process of electrode wire melting. Ibid., 2(6-8), 63, 64 [in Russian].
14. Razmyshlyaev, O.D., Maksymov, S.Yu., Berdnikova, O.M. et al. (2022) Effect of external electromagnetic field configuration on metal structure of welded joints of structural steel. The Paton Welding J., 10, 13-17. https://doi.org/10.37434/tpwj2022.10.02
15. Grabin, V.F., Denisenko, A.V. (1978) Metals science of welding of low- and medium-alloy steels. Kyiv, Naukova Dumka [in Russian].

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