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| Research status and prospect of high entropy alloy composite coatings |
| DONG Tianshun 1，2，LIU Jianhui 1，2，LU Pengwei 1，FU Binguo 1，2，LI Guolu 1，2，MA Qingliang 1 |
| （ 1. School of Materials Science and Engineering，Hebei University of Technology，Tianjin 300401，China;
2. Key Lab. for New Functional Materials in Hebei Province，Tianjin 300401，China） |
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Abstract High-entropy alloy coatings can bring out the excellent comprehensive performance of high-entropy alloy
on the basis of economy and practicality, but its strengthening method is mainly solid solution strengthening,
and the strengthening effect has great limitations, so it is necessary to introduce hard particles into high-entropy alloy
coatings to achieve composite enhancement, so as to obtain a high-entropy alloy composite coating with better
performance. This paper reviews the main techniques for preparing high-entropy alloy composite coatings, such as
laser melting technology, plasma melting technology and argon arc melting technology, and focuses on the current
research status of direct addition and in-situ synthesis of hard particles to enhance high-entropy alloy composite
coatings, analyzes their organization and structure, and discusses the effects of hard particles on high-entropy alloy
composite coatings in terms of hardness, wear resistance, corrosion resistance and high-temperature oxidation resistance,
respectively. Finally, the problems in the research of high-entropy alloy composite coatings are summarized .
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Received: 17 December 2022
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Corresponding Authors:
李国禄（1966—），男，博士，教授，主要研究方向为摩擦学及表面工程。
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2024, Vol. 34 
