Synthesis and Characterization of High-Entropy AlloyAlXFeCoNiCuCrby Laser Cladding

[摘要] High-entropy alloys have been recently found to have novel microstructures and unique properties. In this study, a novelAlXFeCoNiCuCr high-entropy alloy was prepared by laser cladding. The microstructure, chemical composition, and constituent phases of the synthesized alloy were characterized by SEM, EDS, XRD, and TEM, respectively. High-temperature hardness was also evaluated. Experimental results demonstrate that theAlXFeCoNiCuCr clad layer is composed of only BCC and FCC phases. The clad layers exhibit higher hardness at higher Al atomic content. The AlFeCoNiCuCr clad layer exhibits increased hardness at temperature between 400–700°C.

[学科分类] 材料工程