Structure and properties of high-nitrogen corrosion-resistant bearing steel samples obtained by selective laser melting

Sevalnev G.S., Druzhnov M.A., Leonov A.V., Novikov A.S., Lavrik E.G.
UDC
669.15:621.9.048.7
DOI
10.18577/2307-6046-2025-0-10-3-15
Article PDF (Russian) (1.02 MB)
How to cite
Sevalnev G.S., Druzhnov M.A., Leonov A.V., Novikov A.S., Lavrik E.G. Structure and properties of high-nitrogen corrosion-resistant bearing steel samples obtained by selective laser melting // Proceedings of VIAM. 2025. No. 10. DOI: 10.18577/2307-6046-2025-0-10-3-15. URL: https://test.viam.ru/en/journal/2025/10/1
Keywords
bearing steel, high nitrogen steel, additive technologies, selective laser melting, microstructure, mechanical and tribotechnical properties
Abstract

Change in nitrogen concentration, formation of the structure and properties of the metal-powder composition and 3D-printed samples of high-nitrogen corrosion-resistant bearing steel was studied. It is established that providing a super-equilibrium nitrogen concentration in the chemical composition of steel is possible both at the stage of obtaining an ingot and during the production of a metal-powder composition and 3D-printing of samples. The formed segregations of carbonitrides in the obtained samples contribute to a decrease in mechanical and tribotechnical characteristics.

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