Phase transformations during high-speed heat treatment of the system "carbide (M23C6)/(α-Fe) matrix"

Yurii Ivanov, Anatolii Klopotov, Elizaveta Petrikova, Yurii Vlasov, Alexey Kondratyuk

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A brief thermodynamic analysis of phase transformations taking place during heat treatment of the system Fe-Cr-C, which is the basis of high-chromium steel, is performed. It is shown that formation of both, solid solutions based on α-iron (BCC crystalline lattice) and γ-iron (FCC crystalline lattice) and an entire spectrum of carbide phases of the complex element composition (M23C6, M7C3, M3C and M3C2, where the symbol M stands for atoms of metallic elements Fe and Cr) is possible in this material under equilibrium conditions. The irradiation of steel with an intense pulsed electron beam is carried out. It is shown that electron-beam treatment of steel in the melting mode and the subsequent high-speed crystallization is accompanied by transformation of the surface layer structure, consisting of (1) the dissolution of particles of the initial carbide phase; (2) formation of dendritic crystallization cells of submicron (80...200 nm) sizes; (3) the repeated isolation of nanosized (10-15 nm) particles of the carbide phase.

Original languageEnglish
Title of host publicationProspects of Fundamental Sciences Development, PFSD 2017 - Proceedings of the XIV International Conference of Students and Young Scientists
PublisherAmerican Institute of Physics Inc.
Volume1899
ISBN (Electronic)9780735415874
DOIs
Publication statusPublished - 3 Nov 2017
Event14th International Conference of Students and Young Scientists on Prospects of Fundamental Sciences Development, PFSD 2017 - Tomsk, Russian Federation
Duration: 25 Apr 201728 Apr 2017

Conference

Conference14th International Conference of Students and Young Scientists on Prospects of Fundamental Sciences Development, PFSD 2017
CountryRussian Federation
CityTomsk
Period25.4.1728.4.17

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Ivanov, Y., Klopotov, A., Petrikova, E., Vlasov, Y., & Kondratyuk, A. (2017). Phase transformations during high-speed heat treatment of the system "carbide (M23C6)/(α-Fe) matrix". In Prospects of Fundamental Sciences Development, PFSD 2017 - Proceedings of the XIV International Conference of Students and Young Scientists (Vol. 1899). [030007] American Institute of Physics Inc.. https://doi.org/10.1063/1.5009852