Laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material and preparation method thereof

The invention belongs to the technical field of high-entropy alloy design and manufacturing, and particularly relates to a laser cladding NiCoFeCrSiAlMoZr high-entropy alloy coating material and a preparation method thereof.The coating material comprises metal elements Ni, Co, Fe, Cr, Al, Mo and Zr and a non-metal element Si according to a certain proportion, the molar ratio of the metal elements Ni, Co, Fe, Cr, Al and Mo is controlled to be 11%-26%, the molar ratio of the metal element Zr is controlled to be 1%-26%, and the molar ratio of the metal element Si is controlled to be 1%-26%. And the molar ratio of the nonmetal powder Si is controlled to be 11-26%. Metal powder Zr is added into the prepared high-entropy alloy cladding layer, a NiCoFeCrSiAlMoZr multi-element alloy system is formed through a high-temperature alloying reaction of a laser molten pool, the proportion of FCC and BCC phases of the high-entropy alloy cladding layer is controlled by controlling the mass fraction of the Zr element in origin