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Effect of Mechanical Alloying on Structure and Hardness of FeCoNiCu Medium-Entropy Alloy

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Abstract:

A FeCoNiCu high-entropy alloy was synthesized via mechanical alloying using elemental powders. The structural evolution during milling and the effects of subsequent sintering were investigated. X-ray diffraction confirmed the formation of a single-phase FCC solid solution with nanocrystalline structure. SEM and EDS analyses showed homogeneous element distribution without segregation. Microhardness testing revealed an average value of 105.47 HV1, indicating sufficient mechanical performance. The results demonstrate the potential of FeCoNiCu HEAs for structural applications.

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Periodical:

Key Engineering Materials (Volume 1036)

Pages:

53-64

DOI:

https://doi.org/10.4028/p-vZgOv2

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Online since:

December 2025

Authors:

Mykyta Kovalenko*, Serhii Teslia, Vladyslav Stezhkovyi, Tetiana Soloviova

Keywords:

FeCoNiCu, Mechanical Alloying, Medium-Entropy Alloy (MEA), Phase Composition, Powder Metallurgy

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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