High-Entropy Alloys: Synthesis, Characterization, and Applications
A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Metals and Alloys".
Deadline for manuscript submissions: 20 December 2025 | Viewed by 917
Special Issue Editors
Interests: high-entropy alloys; lanthanides; membranes; sensors; luminescence; magnetism
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
High-entropy alloys (HEAs) are alloys composed of five or more elements, usually controlled between 5% and 35% (atomic number fraction). Theoretically, due to the diversity in the random combinations of elements, HEAs can overcome limitations of traditional alloy systems, greatly increasing the scope of research in the development of new materials.
Unlike traditional metal alloys, HEAs have four unique effects, namely, the cocktail effect, the high-entropy effect, the lattice-distortion effect, and the sluggish-diffusion effect. These effects enable HEAs to present unique properties like high strength and toughness, high resistance to corrosion, oxidation, wear, temperature, radiation, and fatigue, among other comprehensive properties, showing better performances than traditional alloys in many fields.
The preparation methods and parameters of HEAs greatly influence their properties and processing costs. These methods include mechanical alloying, melting–casting (vacuum arc melting, vacuum induction melting, vacuum electron beam melting, and resistance furnace melting), and coating (magnetron sputtering, thermal spray technology, electrochemical deposition, laser cladding).
HEAs are developed for many application fields, including nuclear reactors, energy storage, biomedicine, magnetic cooling, photocatalysis, solar panels, aviation, and aerospace engineering.
This Special Issue is open to contributions in the form of experimental and theoretical research articles, as well as reviews, on the preparation, characterization, and applications of high-entropy alloys.
Dr. Bernardo Monteiro
Dr. Marta Dias
Guest Editors
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Keywords
- high-entropy alloys
- preparation methods
- material characterization
- applications
- design of HEAs (empirical method, CALPHAD, molecular dynamics, Monte Carlo, artificial intelligence, and machine learning)
- powder metallurgy
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