The Paton Welding Journal, 2023, №04



2023 №04 (01)

DOI of Article 10.37434/tpwj2023.04.02

2023 №04 (03)

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The Paton Welding Journal, 2023, #4, 11-20 pages

Materials and technological approaches to welding of combined joints between martensitic and austenitic steels used in power machine building (Review)

M.O. Nimko, V.Yu. Skulskyi, T.V. Ivanenko

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

Abstract
A review of recent foreign research literature is given, dedicated to the choice of welding consumables and relevant approaches to welding of combined joints between martensitic and austenitic steels, which are widely used at the moment and in the domestic power machine building. The typical representatives of martensitic and austenitic steels are considered; the problems arising in the joints of dissimilar steels during high-temperature operation, in particular, the process of diffusion of carbon from less alloyed steel to more alloyed and arising of thermal stresses due to the difference in the coefficients of thermal expansion of the combined steels are mentioned; technological approaches to reduce the negative impact of the abovementioned factors are described, as well as the promising welding consumables used in the manufacture of such joints and their comparative analysis are given. At the end of the review, a table is given in which literary references are classified depending on the grade of combined steels and welding consumables used in the manufacture of welded joints in relevant literary references. 47 Ref., 4 Tabl., 8 Fig.
Keywords: welding consumables, joints of dissimilar steels, martensitic steels, austenitic steels, nickel alloys, carbon diffusion, decarbonized interlayer

Received: 12.04.2023
Accepted: 25.05.2023

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