Influence of synthesis parameters on the structure formation in high-nitrogen corrosion-resistant steel

Krylov S.А., Druzhnov M.A., Sevalnev G.S., Novikov A.S., Egorov E.V.
UDC
621.791.724
DOI
10.18577/2307-6046-2026-0-1-30-40
Article PDF (Russian) (896.6 KB)
How to cite
Krylov S.А., Druzhnov M.A., Sevalnev G.S., Novikov A.S., Egorov E.V. Influence of synthesis parameters on the structure formation in high-nitrogen corrosion-resistant steel // Proceedings of VIAM. 2026. No. 1. DOI: 10.18577/2307-6046-2026-0-1-30-40. URL: https://test.viam.ru/en/journal/2026/1/3
Keywords
high-nitrogen steel, additive technologies, selective laser melting, porosity, energy, properties
Abstract

The article presents the results of analysis of the influence of selective laser melting (SLM) technological parameters on the formation of structure, level of porosity and on the complex of mechanical properties of samples made of high-nitrogen corrosion-resistant bearing steel. It was found that exceeding the optimal energy values in the SLM process leads to significant changes in the resulting microstructure of the material. Excessive increase in specific energy density causes overheating of the melt and the associated negative phenomena, including gas release and defect formation, while insufficient energy exposure leads to incomplete fusion of the powder material and the formation of a heterogeneous structure.

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