Microstructure and wear behavior of the AlCrFeCoNi high-entropy alloy fabricated by additive manufacturing

Abstract This study focused on the printability and wear behavior of the AlCrFeCoNi alloy. The equimolar AlCrFeCoNi high-entropy alloy spherical powders synthesized by vacuum induction melting and inert gas atomizer (VIGA) and additive manufacturing (AM) layer based on 304 stainless steel were produced by 3D printing. The microstructure and wear behavior of the laser 3D printed HEA layer were also evaluated. Only a body-centered cubic structure phase was observed during synthesis using VIGA and AM. The findings revealed that the printed alloy had a typical dendrite–interdendrite structure and exhibited excellent hardness and wear resistance.