Heat Treatment of Metals ›› 2021, Vol. 46 ›› Issue (9): 7-14.DOI: 10.13251/j.issn.0254-6051.2021.09.002

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Research progress of high-entropy alloy coating

Chen Mingxuan, Ma Qiang, Meng Junsheng, Li Chengshuo, Shi Xiaoping   

  1. School of Naval Architecture and Port Engineering, Shandong Jiaotong University, Weihai Shandong 264200, China
  • Received:2021-04-15 Online:2021-09-25 Published:2021-12-09

Abstract: The high-entropy alloy coating has a better prospect than traditional alloys in practical engineering applications. The research progress of high-entropy alloy coatings in recent years was summarized. First, the surface cladding technology for preparing high-entropy alloy coatings is introduced in detail, including laser cladding technology, plasma cladding technology, and argon arc cladding technology, and the advantages and disadvantages of each surface cladding technology were analyzed. Then the structure and performance characteristics of the high-entropy alloy coating were summarized. The composition of the phase in the coating includes: solid solution phase, intermetallic compound, nano-precipitated phase, and amorphous phase. High-entropy alloy coating has a series of excellent properties such as high strength and hardness, excellent wear resistance, good corrosion resistance and high temperature oxidation resistance due to various effects. Further, the effect of surface cladding process parameters on quality, the effect of alloying elements on properties and the effect of heat treatment on phase structure evolution were analyzed. Finally, the application prospects and future research directions of high-entropy alloy coatings were prospected.

Key words: high-entropy alloy coating, surface cladding technology, heat treatment

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