Mechanical and magnetic properties of nonequiatomic Fe33Co28Ni28Ta5Al6 high entropy alloy by laser melting deposition.

Soft-magnetic high-entropy alloy (HEA) Fe 33 Co 28 Ni 28 Ta 5 Al 6 were prepared by laser-melting deposition (LMD). The microstructures and mechanical as well as magnetic properties of the fabricated samples were investigated. All samples comprised face- and body-centered cubic phases, where the proportion of the latter increased when the laser power was increased from 800 to 1400 W. With the increasing laser power, the yield strengths of the samples decreased slightly, and the saturation magnetization (B S) of the samples remained at approximately 1.07 T, the coercivity increased from 1034 A/m to 4456 A/m. The study showed that high laser powers resulted in high stress levels and increased the blocking effect on the motion of the magnetic domain walls of the samples. This work would provide a path way for the rapid manufacturing of high-performance soft-magnetic HEAs. • Prepared a soft-magnetic high-entropy alloy via laser-melting deposition (LMD). • Obtained a soft-magnetic material with good yield strength (1380 MPa) at a laser power of 800 W. • The mechanical and magnetic properties of the alloy can be improved via adjusted the laser powders. [ABSTRACT FROM AUTHOR]