Microstructure and properties of FeCoCrNi high entropy alloy produced by laser melting deposition

In this paper, the laser melting deposition (LMD) technology was applied to fabricate FeCoCrNi high entropy alloy (HEA), and the microstructure of the deposited HEA (FeCoCrNi-LMD) was systematically studied. The width of the columnar grains was found to increase gradually from the bottom to the top of the material. The top layer consisted of equiaxed grains. Tensile stress and compressive stress were applied to the material along and...