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Features of the structure and phase formation of welded joints of high-manganese steel Fe-28Mn-11Al-1.2C obtained by Sv-08G2S-O filler wire

Year: 2025

Type: article

Abstract: To determine the possibility of using industrial solutions for welding steels of the Fe-Mn-Al-C system, welding of 8 mm thick plates of high-manganese light steel Fe-28Mn-11Al-1.2C was carried out with filler wire of the Sv-08G2S-O brand with preheating. The microstructure of the obtained joint was studied. Due to experimental studies, it was shown that two zones are formed in the weld metal zone, which differ in chemical composition. The Analysis of microhardness in different zones of the welded joint showed that this characteristic has the lowest values in the weld zone and in the fusion zone, where they have close values of the order of 300-360 HV, the overheating zone is characterized by a gradual increase in microhardness from 320 to 486 HV.

Source: TECHNICAL SCIENCES AND TECHNOLOGIES

DOI: 10.25140/2411-5363-2025-1(39)-109-118

Authors: Serhii Schwab, Mykhailo Voron, Andrii Tymoshenko, Anastasiia Semenko, Yuliia Skorobagatko, Oleksii Smirnov

Institutions: E.O. Paton Electric Welding Institute, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Physicо-Technological Institute of Metals and Alloys of the National Academy of Sciences of Ukraine

Language: English

Topic: Welding Techniques and Residual Stresses

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4410747957

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