Patterns of structure formation for open-hearth steel of the Fe–Cr–Ni–Mo–Ti system during heat treatment

Alekseeva M.S., Slobodskoy P.A., Lukinа E.A., Yakusheva N.A.
UDC
669.14+669.15-194.55
DOI
10.18577/2307-6046-2024-0-2-3-12
Article PDF (Russian) (1.54 MB)
How to cite
Alekseeva M.S., Slobodskoy P.A., Lukinа E.A., Yakusheva N.A. Patterns of structure formation for open-hearth steel of the Fe–Cr–Ni–Mo–Ti system during heat treatment // Proceedings of VIAM. 2024. No. 2. DOI: 10.18577/2307-6046-2024-0-2-3-12. URL: https://test.viam.ru/en/journal/2024/2/1
Keywords
martensitic-aging steels, heat treatment, structure, metallographic studies, transmission electron microscopy, mechanical properties, X-ray diffraction analysis
Abstract

The paper investigates the influence of structural and phase parameters on the mechanical properties of the martensitic-aging steel VNC-17 of the Fe–Cr–Ni–Mo–Ti system. Transmission electron microscopy methods have shown that the structure of the VNC-17 steel, heat treated according to modes including quenching and aging, is characterized by the release of a fine Ni3Ti phase, the existence of which is confirmed by studies of the phase composition by X-ray diffraction analysis. The revealed structural and phase features justify the choice of the heat treatment mode of the martensitic-aging steel VNC-17, which provides hardening without loss of plasticity.

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