Structure of high-chromium steel treated by a microsecond (50-450 μs) low-energy electron beam

Yu F. Ivanov, O. V. Krysina, Yu H. Akhmadeev, I. V. Lopatin, E. A. Petrikova, A. D. Teresov

Research output: Contribution to journalConference articlepeer-review

Abstract

Here we study the elemental composition, phase state, and defect substructure of high-chromium steel 420 exposed to intense low-energy electron beam irradiation with three pulses of duration 50-200 μs on the SOLO setup and with three pulses of duration 450 μs on the COMPLEX setup at a beam energy density of 40-43 J/cm 1 . The research methods include scanning electron microscopy, transmission electron microscopy, and X-ray diffraction analysis. The study shows that electron beam irradiation with surface melting, irrespective of the pulse duration, dissolves the initial carbide phase M 23 C 6 ((Cr, Fe) 23 C 6 ) in steel 420, saturates its surface layer with Cr atoms, and forms submicron dendrite cells, nanosized Cr 3 C 2 and FeCr precipitates, and martensite structure in the steel.

Original languageEnglish
Article number032029
JournalJournal of Physics: Conference Series
Volume1115
Issue number3
DOIs
Publication statusPublished - 27 Nov 2018
Event6th International Congress on Energy Fluxes and Radiation Effects 2018, EFRE 2018 - Tomsk, Russian Federation
Duration: 16 Sep 201822 Sep 2018

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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