Abstract
Currently, additive technologies, in particular, electric arc growth as the most universal and productive, are used to produce individual machine parts. The problem of studying the process of structure formation in alloys during electric arc additive growth to ensure the necessary parameters of the microstructure of a material and its mechanical properties is challenging. 09G2S steel samples for research are fabricated on a developed test bench implementing the technology of 3D printing by electric arc surfacing, microstructural studies on an optical microscope are used, and microhardness measurements are carried out. The features of structure formation in a 09G2S alloy during additive electric arc growth have been determined, and controlled parameters have been identified to ensure the necessary parameters of the structure and, consequently, the mechanical properties of the alloy. The heat input of the surfacing process and the temperature of a thermal cycle are found to play a significant role in the structure formation in the material. The conducted research and established dependences make it possible to control the structural state of 09G2S steel during cladding to ensure the required parameters of its microstructure and mechanical properties.
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Funding
This work was supported by the Russian Science Foundation, project no. 22-79-00095 “Development of scientific and technological backgrounds of structure formation of engineering materials produced by additive electric arc growth in order to generate mechanical properties upon fatigue using artificial intelligence approaches.”
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Translated by I. Moshkin
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Anosov, M.S., Shatagin, D.A., Ryabov, D.A. et al. Structure Formation in 09G2S Steel Produced by Additive Electric Arc Growth. Russ. Metall. 2023, 2270–2274 (2023). https://doi.org/10.1134/S0036029523700490
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DOI: https://doi.org/10.1134/S0036029523700490