Influence of small additions of aluminum on the structure and phase composition of (Fe0.25Co0.25Ni0.25Cr0.125V0.125)83B17 alloy

This work investigates the influence of small additions of aluminum on the structure of ingots from a high-entropy alloy of the (Fe 0.25 Co 0.25 Ni 0.25 Cr 0.125 V 0.125 ) 83 B 17 composition. The structure of experimental alloys was analyzed using scanning electron microscopy and EDX analysis. The...

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Bibliographic Details
Published in:Metallurgist (New York) 2025, Vol.68 (9), p.1293-1301
Main Authors: Bazlov, Andrey I., Ubyivovk, Evgeny V., Strochko, Ilya V., Zanaeva, Erzhena N., Sviridova, Tatiana A.
Format: Article
Language:English
Subjects:
Aluminum
Borides
Characterization and Evaluation of Materials
Chemistry and Materials Science
Crystallization
Electron backscatter diffraction
Electron microscopy
Eutectic alloys
Eutectic composition
High entropy alloys
Materials Science
Metallic Materials
Phase composition
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Summary:This work investigates the influence of small additions of aluminum on the structure of ingots from a high-entropy alloy of the (Fe 0.25 Co 0.25 Ni 0.25 Cr 0.125 V 0.125 ) 83 B 17 composition. The structure of experimental alloys was analyzed using scanning electron microscopy and EDX analysis. The borides formed in the structure were analyzed by transmission electron microscopy, X‑ray diffraction, and electron backscatter diffraction. Aluminum addition was found to change the crystallization process of the alloys, affecting the type of primary boride crystals and eutectic composition. The addition of aluminum to the alloy in greater amounts changes the boride type from refractory boride of (V, Cr)B type to a more easily melting type of boride M 3 B 2 .
ISSN:0026-0894
1573-8892
DOI:10.1007/s11015-024-01840-0