Effect of Electron Beam Treatment on the Fracture Behavior of High–Entropy Cr – Mn – Fe – Co - Ni Alloy

The study investigates a high-entropy non-equiatomic alloy of the Co – Cr – Fe – Mn – Ni system obtained using wire-arc additive manufacturing (WAAM) technology and subjected to electron beam irradiation (EBI). The strain curves of alloy samples under tension after fabrication and EBI are analyzed....

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Bibliographic Details
Published in:Metal science and heat treatment 2022-09, Vol.64 (5-6), p.276-280
Main Authors: Gromov, V. E., Shlyarova, Yu. A., Ivanov, Yu. F., Konovalov, C. V., Vorob’ev, C. V.
Format: Article
Language:English
Subjects:
Alloys
Analysis
Characterization and Evaluation of Materials
Chemistry and Materials Science
Chromium
Classical Mechanics
Cobalt
Electron beam processing
Electron irradiation
Engineering Thermodynamics
Fracture surfaces
Heat and Mass Transfer
High entropy alloys
Iron
Manganese
Materials Science
Metallic Materials
Nickel
Specialty metals industry
Surface layers
Wire industry
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Summary:The study investigates a high-entropy non-equiatomic alloy of the Co – Cr – Fe – Mn – Ni system obtained using wire-arc additive manufacturing (WAAM) technology and subjected to electron beam irradiation (EBI). The strain curves of alloy samples under tension after fabrication and EBI are analyzed. The structure of the fracture surface of the alloy was studied using scanning electron microscopy. The strength and plasticity of the alloy are shown to decrease with an increase in the energy density of the electron beam. This is assumed to be due to the appearance of defects in the structure of the surface layers as a result of elastic stresses arising during high-speed quenching of samples following thermal exposure to an electron beam.
ISSN:0026-0673
1573-8973
DOI:10.1007/s11041-022-00800-2