Anticorrosive coating nickel-based alloy powder for laser cladding

An anticorrosive coating nickel-based alloy powder for laser cladding with anticorrosive capacity and stable performance comprises Cr, Mo, Ni, Y2O3 and Hf; the anticorrosive coating nickel-based alloy powder for laser cladding further comprises W, Si, Mn, Co and Fe, wherein the percentages by weight of each constituents are: 12-18% of Cr; 11-17% of Mo; 2-5% of W; 1-3% of Co; 0.3-1% of Mn; 0.5-1% of Fe; 0.1-0.3% of Si; 0.1-0.3% of Y2O3; 0.1-0.3% of Hf, and the balance of Ni. In the present invention, crack resistance, formability, process stability and constituent uniformity of the alloy powder in laser cladding layer are improved; combination property requirements of repaired parts to corrosion resistance, abrasion resistance, fatigue resistance and moderate hardness of cladding layer are satisfied.