Study of high-strength low-alloy steel with super-equilibrium nitrogen content

Krylov S.А., Makarov А.А., Druzhnov M.A.
UDC
669.15
DOI
10.18577/2307-6046-2020-0-12-3-13
Article PDF (Russian) (1.08 MB)
How to cite
Krylov S.А., Makarov А.А., Druzhnov M.A. Study of high-strength low-alloy steel with super-equilibrium nitrogen content // Proceedings of VIAM. 2020. No. 12. DOI: 10.18577/2307-6046-2020-0-12-3-13. URL: https://test.viam.ru/en/journal/2020/12/1
Keywords
high-strength steel, low-alloy steel, nitrogen-containing steel, nitrogen, super-equilibrium nitrogen content, electroslag remelting under pressure, structure, mechanical properties.
Abstract

In continuation of joint work of FSUE «VIAM» and IMET RAN named after Baikov, in the field of obtaining low-alloy steels with increased mechanical properties with a super-equilibrium nitrogen content, the mechanical properties, structure, and chemical composition of the obtained steel were studied. It is shown that steel 10KH3A with a super-equilibrium nitrogen content (up to 0,2) electroslag remelting under pressure DESHP-0,1 (FSUE «VIAM») provides a high level of properties (ultimate strength 1670 MPa) while maintaining high mechanical characteristics (elongation 10%, constriction 50%).

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