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High-Entropy Alloys and Composite Materials: Preparation, Processing, and Performance

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 499

Special Issue Editors

National Key Laboratory of Nuclear Power Key Materials, Shanghai University, Shanghai 200444, China
Interests: high-entropy alloys; structure–property relationships; additive manufacturing; lightweight engineering

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Guest Editor
National Engineering Research Center of Light Alloy Net Forming and the State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Interests: high-entropy alloys; additive manufacturing; nuclear key materials; heterostructure
Marine Equipment and Technology Institute, Jiangsu University of Science and Technology, Zhenjiang 212003, China
Interests: high-entropy alloys; structure–property relationships; additive manufacturing; refractory high-entropy alloys

Special Issue Information

Dear Colleagues,

High-entropy alloys (HEAs) and their composite materials have emerged as a revolutionary class of advanced materials, characterized by a multi-principal element design with near-equiatomic proportions of five or more elements. This unique composition generates high-configurational entropy, giving rise to complex microstructures, novel phase formations, and outstanding mechanical and functional properties, distinguishing them from conventional alloys.​

The research landscape on HEAs and HEA-based composites has grown exponentially, with significant breakthroughs in alloy design, microstructure manipulation, processing methodologies, and performance enhancement. Through the integration of diverse manufacturing techniques like casting, powder metallurgy, additive manufacturing, and surface engineering, scientists are exploring new approaches to improve mechanical strength, ductility, corrosion and wear resistance, and multifunctionality under extreme conditions.

This Special Issue aims to serve as a comprehensive platform for disseminating the latest advancements and discussing the challenges in the field of HEAs and composite materials. It welcomes original research articles and reviews focusing on design strategies, microstructural characterization, innovative processing techniques, and performance evaluations. Additionally, contributions related to theoretical modeling, additive manufacturing, heterostructures, and application-oriented studies are highly encouraged. By facilitating interdisciplinary exchange, this Special Issue seeks to drive the development of next-generation high-performance materials for various structural and functional applications.

Dr. Yuefei Jia
Dr. Zhenfei Jiang
Dr. Long Xu
Guest Editors

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Keywords

  • high-entropy alloys
  • high-entropy composite
  • preparation
  • processing
  • performance

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Published Papers (1 paper)

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Research

14 pages, 10913 KB  
Article
Lattice Distortion Effects on Mechanical Properties in Nb-Ti-V-Zr Refractory Medium-Entropy Alloys
by Xiaochang Xie, Ping Yang, Yuefei Jia and Yandong Jia
Materials 2025, 18(14), 3356; https://doi.org/10.3390/ma18143356 - 17 Jul 2025
Viewed by 364
Abstract
Medium-entropy alloys (MEAs) have attracted significant attention due to their unique structure–property relationships. In this study, we examine the effects of lattice distortion on the mechanical properties of Nb-Ti-V-Zr MEAs, focusing on two alloy series: Nb(Ti1.5V)xZr and Nb(TiV)x [...] Read more.
Medium-entropy alloys (MEAs) have attracted significant attention due to their unique structure–property relationships. In this study, we examine the effects of lattice distortion on the mechanical properties of Nb-Ti-V-Zr MEAs, focusing on two alloy series: Nb(Ti1.5V)xZr and Nb(TiV)xZr (x = 1, 2, 3, 4 and 5). Experimental results show that the Nb(TiV)xZr r alloys exhibit greater atomic size mismatches and increased lattice distortion compared to the Nb(Ti1.5V)xZr alloys, leading to higher yield strengths via enhanced solid-solution strengthening. However, excessive lattice distortion does not ensure an optimal strength–ductility balance, as the alloys with the highest distortion demonstrate limited plasticity. Thus, moderate reduction in lattice distortion proves beneficial in achieving an excellent compromise between strength and ductility. These findings offer valuable guidance for leveraging lattice distortion in the design of high-strength, high-ductility, body-centered cubic (BCC) MEAs for extreme environments. Full article
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