Phase formation in high-chromium steel under electron-ion-plasma treatment
Yu..F. Ivanov1, A.A. Klopotov2, I.V. Lopatin1, O.V. Ivanova2, T.L. Petrikova1, M.S. Petukevich1, E.L. Nikonenko3
1 Institute of High Current Electronics of the Siberian Branch of RAS
2 Tomsk State University of Architecture and Building
3 National Research Tomsk Polytechnic University
DOI: 10.26456/pcascnn/2022.14.609
Original article
Abstract: The surface alloying was carried out by single-cycle and multi-cycle (5 cycles «sputtering-irradiation», in each cycle the thickness of the titanium film 0,5 µm), i.e. high-speed melting of the system «film (Ti)/(steel AISI 310S) substrate» by pulsed electron beam. Nitriding (793 K; for 1, 3 and 5 hours) was carried out under conditions of realization of the elion (electron and ion) treatment mode. The isothermal cross sections of the ternary systems of the state diagram of the Cr – Fe – Ni – Ti – N alloy formed at different stages of the complex treatment of steel are considered. It is shown that (1) irradiation of steel by a pulsed electron beam is accompanied by the formation of a structure of high-speed cellular crystallization of solid solution based on γ–Fe; (2) nitriding of steel in the initial state is accompanied by formation of nitrides of iron Fe4N and chrome CrN with a total content of 79,8 wt.%; (3) pulsed electron-beam pre-irradiation of steel leads to a decrease in the rate of nitride formation during subsequent nitriding; the total nitride content of 53 wt.%; (4) regardless of the number of alloying cycles (titanium concentration in the surface layer) after five hours of nitriding in the samples formed a surface layer of nitrides of chromium and iron (1 cycle of doping) or nitrides of chromium and titanium (5 cycles of doping).
Keywords: complex electron-ion-plasma treatment, electron plasma component heating of samples, high-chromium steel, surface alloying, phase composition
- Yury F. Ivanov – Dr. Sc., Chief Researcher, Laboratory of Plasma Emission Electronics, Institute of High Current Electronics of the Siberian Branch of RAS
- Anatoly A. Klopotov – Dr. Sc., Professor, Department of Applied Mechanics and Materials Science, Tomsk State University of Architecture and Building
- Ilya V. Lopatin – Ph.D., Senior Researcher, Institute of High Current Electronics of the Siberian Branch of RAS
- Olga V. Ivanova – Ph.D., Associate Professor, Department of Higher Mathematics, Tomsk State University of Architecture and Building
- Elizaveta L. Petrikova – Junior Researcher, Institute of High Current Electronics of the Siberian Branch of RAS
- Maria S. Petukevich – Ph. D., Researcher, Institute of High Current Electronics of the Siberian Branch of RAS
- Elena L. Nikonenko – Ph. D., Senior Lecturer, Department of Natural Sciences, School of Basic Engineering Education, National Research Tomsk Polytechnic University
Reference:
Ivanov, Yu..F. Phase formation in high-chromium steel under electron-ion-plasma treatment / Yu..F. Ivanov, A.A. Klopotov, I.V. Lopatin, O.V. Ivanova, T.L. Petrikova, M.S. Petukevich, E.L. Nikonenko // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. — 2022. — I. 14. — P. 609-620. DOI: 10.26456/pcascnn/2022.14.609. (In Russian).
Full article (in Russian): download PDF file
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