Evolution of Structure of AlCoCrFeNi High-Entropy Alloy on Irradiation by Pulsed Electron Beam

By the metho ds of modern physical materials science the change in structural-phase state of AlCoCrFeNi high-entropy alloy (HEA) of nonequiatomic composition obtained by the metho ds of wire arc additive technology (WAAM) after irradiation by electron beams with energy density of 10–30 J/cm 2 , dura...

Full description

Saved in:
Bibliographic Details
Published in:Technical physics 2024-02, Vol.69 (2), p.274-277
Main Authors: Ivanov, Yu. F., Gromov, V. E., Konovalov, S. V., Shliarova, Y. A.
Format: Article
Language:English
Subjects:
Alloying elements
Cellular structure
Classical and Continuum Physics
Crystallization
Dendritic structure
Electron beam processing
High entropy alloys
Inclusions
Irradiation
Physics
Physics and Astronomy
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:By the metho ds of modern physical materials science the change in structural-phase state of AlCoCrFeNi high-entropy alloy (HEA) of nonequiatomic composition obtained by the metho ds of wire arc additive technology (WAAM) after irradiation by electron beams with energy density of 10–30 J/cm 2 , durality of 50 µs, frequency 0.3 s –1 is studied. In the initial state the alloy had a dendritic structure indicating the inhomogeneous distribution of elements. It is shown that electron beam processing forms the structure of high-velocity cellular crystallization with cell size of 100–200 nm, along boundaries of which the nano dimensional (15–30 nm) inclusions of the second phase enriched in Cr and Fe atoms are located.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784224010201