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Application Prospects and Microstructural Features in Laser-Induced Rapidly Solidified High-Entropy Alloys |
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| Authors: | Hui Zhang Ye Pan Yi-Zhu He Ji-Li Wu T M Yue Sheng Guo |
| Affiliation: | 1. School of Materials Science and Engineering, Anhui University of Technology, Ma’anshan, 243002, Anhui, People’s Republic of China 2. Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, Jiangsu, People’s Republic of China 3. Department of Industrial and Systems Engineering, The Advanced Manufacturing Technology Research Center, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, Hong Kong 4. Surface and Microstructure Engineering Group, Department of Materials and Manufacturing Technology, Chalmers University of Technology, 41296, Gothenburg, Sweden |
| Abstract: | Recently, high-entropy alloys (HEAs) have attracted much interest in the materials community, as they offer massive opportunities to observe new phenomena, explore new structure, and develop new materials. Particularly, it is attractive to prepare high-performance HEA coatings by laser-induced rapid solidification, which can be formed on the surface of components and parts in a variety of sizes and shapes with a lower cost in comparison with those bulk material fabrication methods. From the technical point of view, laser-induced rapid solidification could hamper the compositional segregation, improve the solubility in solid-solution phases, and lead to the strengthening effect by the grain refinement. This article reviews the recent work on the typical microstructural features and the mechanical and chemical properties in laser-induced rapidly solidified HEAs, and these data are compared with conventional Co- and Ni-based alloy coatings. The article concludes with suggestions for future research and development in HEAs, from considerations of their characteristic properties. |
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