Tribological Performance of High-Entropy Alloys

A special issue of Lubricants (ISSN 2075-4442).

Deadline for manuscript submissions: 30 April 2026 | Viewed by 325

Special Issue Editors


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Guest Editor
Facultad de Ingeniería Mecánica y Eléctrica (FIME), Universidad Autónoma de Nuevo León, Av. Universidad S/N, San Nicolás de los Garza 66450, Mexico
Interests: high entropy alloys; wear; lubricants; castings

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Guest Editor
Departamento de Educación Tecnológica, Facultad de Tecnología (FATEC), Universidad Pedagógica Nacional Francisco Morazán, Colonia el Dorado, Tegucigalpa 04001, Honduras
Interests: high entropy alloys; wear; lubricants; castings

Special Issue Information

Dear Colleagues,

The recent increase in industrial and commercial development has significantly increased the demand for metals with mechanical properties superior to those of conventional alloys. High-entropy alloys (HEAs), defined by their multi-principal element composition, have demonstrated remarkable properties such as enhanced thermal stability, high hardness and strength, excellent ductility, and exceptional resistance to wear and corrosion. More recently, medium-entropy alloys (MEAs) have emerged as promising alternatives. MEAs offer a balance between performance and density, exhibiting improved mechanical properties, lower weight, and, in some cases, superior corrosion resistance and thermal stability compared to both conventional alloys and HEAs. These attributes make these alloys highly attractive for critical applications in the automotive, aerospace, and power generation sectors, spurring intensified research efforts to optimize their composition, microstructure, and functional performance.

High-Entropy Alloys (HEAs):

  • Multi-principal element alloys;
  • Medium entropy alloys (MEAs);
  • Solid solution strengthening;
  • Phase stability;
  • Severe plastic deformation;
  • Microstructure evolution;
  • Refractory HEAs;
  • Lightweight HEAs;
  • High-temperature materials;
  • Mechanical properties;
  • Corrosion resistance;
  • Entropic stabilization;
  • Precipitation hardening;
  • Grain refinement.

Wear Resistance:

  • Tribological properties;
  • Surface hardness;
  • Abrasive wear;
  • Adhesive wear;
  • Oxidative wear;
  • Sliding wear;
  • Erosion resistance;
  • Friction coefficient;
  • Surface engineering;
  • Coating performance;
  • Load-bearing capacity;
  • Subsurface deformation;
  • Wear mechanisms;
  • Hardness-to-modulus ratio.

Lubricants and Tribology:

  • Boundary lubrication;
  • Solid lubricants (e.g., MoS2, graphite);
  • Lubrication regime;
  • Self-lubricating materials;
  • Anti-wear additives;
  • Tribofilm formation;
  • High-temperature lubrication;
  • Friction modifiers;
  • Nano-lubricants;
  • Synergistic lubrication;
  • Wear debris analysis;
  • Tribo-chemical interactions.

Prof. Dr. Arturo Juárez-Hernández
Prof. Dr. Denis Ariel Avila Salgado
Guest Editors

Manuscript Submission Information

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Keywords

  • high-entropy alloys
  • wear
  • lubricants
  • castings

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Published Papers (1 paper)

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Review

25 pages, 5020 KiB  
Review
Research Progress on Tribological Properties of High-Entropy Alloys
by Shuai Zhang, Zhaofeng Wang, Wenqing Lin and Haoyu Guo
Lubricants 2025, 13(8), 342; https://doi.org/10.3390/lubricants13080342 - 1 Aug 2025
Viewed by 203
Abstract
As a new type of alloy system composed of five or more principal components, high-entropy alloys demonstrate outstanding comprehensive performance in the field of friction and wear through the synergistic effects of the high-entropy effect, lattice distortion effect, hysteresis diffusion effect and cocktail [...] Read more.
As a new type of alloy system composed of five or more principal components, high-entropy alloys demonstrate outstanding comprehensive performance in the field of friction and wear through the synergistic effects of the high-entropy effect, lattice distortion effect, hysteresis diffusion effect and cocktail effect. This paper systematically reviews the research progress on the friction and wear properties of high-entropy alloys. The mechanisms of metal elements such as Al, Ti, Cu and Nb through solid solution strengthening, second-phase precipitation and oxide film formation were analyzed emphatically. And non-metallic elements such as C, Si, and B form and strengthen the regulation laws of their tribological properties. The influence of working conditions, such as high temperature, ocean, and hydrogen peroxide on the friction and wear behavior of high-entropy alloys by altering the wear mechanism, was discussed. The influence of test conditions such as load, sliding velocity and friction pair matching on its friction coefficient and wear rate was expounded. It is pointed out that high-entropy alloys have significant application potential in key friction components, providing reference and guidance for the further development and application of high-entropy alloys. Full article
(This article belongs to the Special Issue Tribological Performance of High-Entropy Alloys)
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