ELECTRON BEAM WELDING OF ALCOCRFENI2.1 EUTECTIC HIGH-ENTROPY ALLOY

1 RONČÁK Ján
Co-authors:
2 ADAM Ondřej 3 MÜLLER Peter 1 ZOBAČ Martin
Institutions:
1 Institute of Scientific Instruments of the CAS, Brno, Czech Republic, EU, roncak@isibrno.cz
2 Brno University of Technology, Institute of Materials Science and Engineering, Brno, Czech Republic, EU
3 Brno University of Technology, Institute of Manufacturing Technology, Brno, Czech Republic, EU
Conference:
31st International Conference on Metallurgy and Materials, Orea Congress Hotel Brno, Czech Republic, EU, May 18 - 19, 2022
Proceedings:
Proceedings 31st International Conference on Metallurgy and Materials
Pages:
773-778
ISBN:
978-80-88365-06-8
ISSN:
2694-9296
Published:
30th June 2022
Proceedings of the conference have already been published in Scopus and we are waiting for evaluation and potential indexing in Web of Science.
Metrics:
290 views / 178 downloads
Abstract

Eutectic high-entropy alloys have become a significantly studied type of material due to their combination of strength and ductility. However, previous research has focused primarily on manufacture, solidification behaviour and mechanical properties. Only a small part of the research has been devoted to welding. This paper is focused on evaluating the weldability of eutectic high-entropy alloy AlCoCrFeNi2.1 in the as-cast state without further heat treatment. The electron beam welding process was performed twice at the same parameters, except for the beam current. Properties such as the depth of the remelted layer, the formation of the heat-affected zone, and the presence of undesirable defects in the welded joints were observed using light and electron microscopy. At the same time, material properties in the form of microstructural stability, chemical composition, and hardness of the welded joints were evaluated.

Keywords: AlCoCrFeNi2.1, electron beam welding, eutectic high-entropy alloys, microstructure

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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