Cored wire for high amorphous content wear-resistant anticorrosive coating layer

The invention discloses a cored wire for a high amorphous content wear-resistant anticorrosive coating layer. The cored wire consists of a powdered core and an outer skin, wherein the outer skin is a stainless steel strip, and the powdered core is obtained by mixing six types of metal alloy powder, and comprises the following components in percentage by mass: 2 to 6 percent of B, 2 to 5 percent of Si, 3 to 10 percent of Nb, 2 to 5 percent of Cr, 2 to 7 percent of Ni, 0.5 to 2 percent of Al, and the balance of Fe. The preparation method of the cored wire comprises the following steps of: rolling the stainless steel strip into a U shape, and adding 33 to 42 percent of powder into a U-shaped groove; sealing up the U-shaped groove to enwrap the powder in the U-shaped groove; and gradually drawing and reducing the diameter through a wire-drawing die to ensure that the final diameter of the cored wire is 2.0 mm. A compact and continuous amorphous coating layer with a low oxide content and a certain shape is formed on a cooled steel substrate by adopting a high-speed electric arc spraying technique; the coating layer is compact in organization structure and high in thermal stability, the amorphous content is more than or equal to 80 percent, the porosity is less than or equal to 2.5 percent, the bonding strength is more than or equal to 50 MPa, and the average hardness is more than or equal to 1,000 HV0.1, so the cored wire can significantly improve the long-effective corrosion resistance and the wear-out life of mechanical parts.