The Paton Welding Journal, 2022, №05



2022 №05 (07)

DOI of Article 10.37434/tpwj2022.05.01

2022 №05 (02)

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The Paton Welding Journal, 2022, #5, 3-9 pages

Influence of pulsed-arc welding modes on the structure and mechanical properties of welds and haz metal of welded joints of 30Kh2N2MDF steel

O.A. Gaivoronskyi, V.D. Poznyakov, Yu.V. Demchenko, A.M. Denysenko, A.V. Zavdoveev, V.A. Kostin, T.G. Solomiychuk

E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: avzavdoveev@gmail.com

Abstract
The technological concept of welding high-strength steels with the yield strength over 1200 MPa is proposed and scientifically substantiated, which consists in combination of pulsed-arc MIG welding and application of a high-alloy wire of Cr–Ni–Mn alloying system. The structured information on the peculiarities of the thermal cycle and its influence on the structural transformations in HAZ and weld metal was obtained. The notion of the course of physical and metallurgical welding processes depending on basic parameters of standard and forced welding modes was developed. Their positive effect on mechanical properties of welded joints was established.
Keywords: pulsed-arc welding, high-strength steels, properties, structure, heat-affected zone, austenitic welding material

Received: 24.02.2022
Accepted: 08.08.2022

References

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Suggested Citation

O.A. Gaivoronskyi, V.D. Poznyakov, Yu.V. Demchenko, A.M. Denysenko, A.V. Zavdoveev, V.A. Kostin, T.G. Solomiychuk (2022) Influence of pulsed-arc welding modes on the structure and mechanical properties of welds and haz metal of welded joints of 30Kh2N2MDF steel. The Paton Welding J., 05, 3-9.

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