Gradient structure formation in the surface layer of AK10M2N silumin by electron beam treatment

D. V. Zagulyaev, V. E. Gromov, S. V. Konovalov, Yu F. Ivanov, A. D. Teresov, Yu S. Serenkov

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

Abstract

The paper uses methods of the modern material physics to study the phase composition change and restructuring in the silumin surface layer due to high-current pulsed electron beam treatment. It has been found that irradiation of silumin with the high-current pulsed electron beam (25 J/cm2, 150 μs, 3 pulses) leads to high-rate melting of the surface layer and subsequent high-rate crystallization characterized with the formation of a submicroscopic nanocrystalline multiphase structure. The formed structure proved to be gradient and multilayer. It was predominately represented by submicron cells resulting from high-rate crystallization of the aluminum-based solid solution. Nanosized layers of the second phase and submicron cells of eutectic crystallization of silumin have been revealed along the cell boundaries. Silicon and intermetallic inclusions have been found to dissolve in the layer of thickness up to 40 μm. The 1.5-2.0-fold decrease in the concentration of alloying elements has been discovered in the surface layer of irradiated silumin specimens. The X-ray microanalysis revealed that the irradiation of silumin with the high-current pulsed electron beam reduces by more than half the silicon concentration in the surface layer ≈60 μm thick and transforms it into the quasi-homogeneous state.

Original languageEnglish
Title of host publicationProceedings of the Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures
EditorsVasily M. Fomin, Victor E. Panin, Sergey G. Psakhie
PublisherAmerican Institute of Physics Inc.
Volume2051
ISBN (Electronic)9780735417779
DOIs
Publication statusPublished - 12 Dec 2018
EventInternational Symposium on Hierarchical Materials: Development and Applications for New Technologies and Reliable Structures 2018 - Tomsk, Russian Federation
Duration: 1 Oct 20185 Oct 2018

Conference

ConferenceInternational Symposium on Hierarchical Materials: Development and Applications for New Technologies and Reliable Structures 2018
CountryRussian Federation
CityTomsk
Period1.10.185.10.18

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Zagulyaev, D. V., Gromov, V. E., Konovalov, S. V., Ivanov, Y. F., Teresov, A. D., & Serenkov, Y. S. (2018). Gradient structure formation in the surface layer of AK10M2N silumin by electron beam treatment. In V. M. Fomin, V. E. Panin, & S. G. Psakhie (Eds.), Proceedings of the Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures (Vol. 2051). [020333] American Institute of Physics Inc.. https://doi.org/10.1063/1.5083576