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<p>High-entropy alloys (HEAs) played a positive role in shape memory alloy (SMA) coatings by improving their microstructure, which enhanced the tribological performance. In this study, the Fe<sub>45</sub>Mn<sub>35</sub>Co<sub>10</sub>Cr<sub>10</sub> HEA was incorporated into the Cu<sub>11.85</sub>Al<sub>3.2</sub>Mn<sub>0.1</sub> SMA coating by laser cladding (LC), and the effects of HEA content on the structural evolution, phase transition, and tribological performance were investigated. The results demonstrate that the microstructure of Cu<sub>11.85</sub>Al<sub>3.2</sub>Mn<sub>0.1</sub> SMA coating is improved by the addition of Fe<sub>45</sub>MIRn<sub>35</sub>Co<sub>10</sub>Cr<sub>10</sub> HEA, promoting the formation of complex intermetallic phases. Their tribological performance is substantially enhanced, which is attributed to the HEA effect increasing the hardness and wear resistance. This finding provides fundamental insights into the design of high-performance coatings for engineering applications, offering a viable strategy to improve their wear-resistant properties.</p>

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Microstructure, Mechanical Properties, and Tribological Properties of Fe45Mn35Co10Cr10 High-Entropy Alloy Reinforced Cu11.85Al3.2Mn0.1Ti Shape Memory Alloy Coatings by Laser Cladding

  • 期刊论文

  • 发表日期：

    2026年1月5日

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  • Wang Fengqin,
  • Jiang Yinfang,
  • Kong Dejun

摘要

High-entropy alloys (HEAs) played a positive role in shape memory alloy (SMA) coatings by improving their microstructure, which enhanced the tribological performance. In this study, the Fe45Mn35Co10Cr10 HEA was incorporated into the Cu11.85Al3.2Mn0.1 SMA coating by laser cladding (LC), and the effects of HEA content on the structural evolution, phase transition, and tribological performance were investigated. The results demonstrate that the microstructure of Cu11.85Al3.2Mn0.1 SMA coating is improved by the addition of Fe45MIRn35Co10Cr10 HEA, promoting the formation of complex intermetallic phases. Their tribological performance is substantially enhanced, which is attributed to the HEA effect increasing the hardness and wear resistance. This finding provides fundamental insights into the design of high-performance coatings for engineering applications, offering a viable strategy to improve their wear-resistant properties.