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<p>The pursuit of high-performance wear-resistant materials is essential for advancing the durability and reliability of mechanical systems. High-entropy alloys (HEAs), characterized by their multi-principal-element compositions, have emerged as a promising paradigm for designing next-generation wear-resistant materials. This review systematically examines recent advances in the study of wear-resistant HEAs. It begins by elucidating the core design principles and fundamental tribological mechanisms that underpin HEAs. The analysis then delves into the microstructure, mechanical properties, and associated wear resistance mechanisms of single-phase HEAs with FCC and BCC structures. Furthermore, the review explores phase-engineering strategies—particularly the construction of FCC/BCC dual-phase and multiphase heterogeneous microstructures—for achieving an optimal balance of strength, toughness, and wear resistance. Recent progress in high-entropy alloy composites (HEACs) is also discussed, highlighting how the incorporation of hard ceramic phases enhances hardness and abrasive wear resistance, while solid lubricant phases reduce the friction coefficient via the formation of lubricating transfer films. Building on these complementary effects, this review proposes an integrated dual-phase composite design strategy, offering viable technical pathways and theoretical foundations for significantly improving the wear resistance of HEAs under extreme service conditions.</p>

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Research progress on wear resistance of high-entropy alloys and high-entropy alloy composites

  • 期刊论文

  • 发表日期：

    2026年3月17日

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  • Rui Deng,
  • Junhong Jia,
  • Runze Wei,
  • Xiaoyu Jiao,
  • Jie Yang,
  • Yun Shi,
  • Zongyu Zhang,
  • Haichao Zhao

摘要

The pursuit of high-performance wear-resistant materials is essential for advancing the durability and reliability of mechanical systems. High-entropy alloys (HEAs), characterized by their multi-principal-element compositions, have emerged as a promising paradigm for designing next-generation wear-resistant materials. This review systematically examines recent advances in the study of wear-resistant HEAs. It begins by elucidating the core design principles and fundamental tribological mechanisms that underpin HEAs. The analysis then delves into the microstructure, mechanical properties, and associated wear resistance mechanisms of single-phase HEAs with FCC and BCC structures. Furthermore, the review explores phase-engineering strategies—particularly the construction of FCC/BCC dual-phase and multiphase heterogeneous microstructures—for achieving an optimal balance of strength, toughness, and wear resistance. Recent progress in high-entropy alloy composites (HEACs) is also discussed, highlighting how the incorporation of hard ceramic phases enhances hardness and abrasive wear resistance, while solid lubricant phases reduce the friction coefficient via the formation of lubricating transfer films. Building on these complementary effects, this review proposes an integrated dual-phase composite design strategy, offering viable technical pathways and theoretical foundations for significantly improving the wear resistance of HEAs under extreme service conditions.