Abstract
The structure, magnetic, and electrical properties of the 09G2S steel prepared by selective laser melting (3D steel) and casting are studied. It is found that the 3D 09G2S steel becomes similar in structure to the cast steel after normalization at 980°C for 30 min; in this case, the hardness decreases by 70% as compared to the annealed 3D steel. The surface stresses are maximal in the 3D steel after its preparation and 3-hour annealing. The normalization enables us to substantially decrease the residual stresses, which is confirmed by the X-ray diffraction and magnetometric measurements. The coercive force and the remanence of the normalized 09G2S steel are comparable with similar properties of the normalized cast 09G2S steel, which demonstrates the similarity of the structural and stress–strain states of the cast and 3D steels.
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Funding
The reported study was funded by RFBR and BRFBR, project number (project no. 20-58-00015 Bel_a) in the framework of state task of the Ministry of Higher Education and Science of the Russian Federation (theme “Diagnostics”, no. AAAA-A18-118020690196-3).
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Translated by Yu. Ryzhkov
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Nichipuruk, A.P., Stashkov, A.N., Shchapova, E.A. et al. Structure and Magnetic Properties of 09G2S Steel Obtained by the Selective Laser Melting Method. Phys. Solid State 64, 148–153 (2022). https://doi.org/10.1134/S1063783422030076
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DOI: https://doi.org/10.1134/S1063783422030076