Nickel-based alloy for compressor and preparation method of rotor forging stock of nickel-based alloy

The nickel-based alloy comprises the following main chemical components in percentage by mass: 0.015 to 0.080 percent of C, less than or equal to 0.35 percent of Mn, less than or equal to 0.35 percent of Si, less than or equal to 0.0020 percent of S, 50.0 to 55.0 percent of Ni, 1.00 to 2.00 percent of Al, 1.50 to 2.25 percent of Ti, 4.50 to 5.75 percent of Nb, 0.050 to 0.100 percent of Zr, 0.008 to 0.010 percent of B, 16.0 to 20.0 percent of Cr, 1.50 to 2.50 percent of W, less than or equal to 0.010 percent of N, less than or equal to 0.005 percent of O, less than or equal to 0.015 percent of P and the balance of Fe. The invention further discloses a preparation method of the nickel-based alloy rotor forging stock for the compressor. The nickel-based alloy rotor forging stock is produced through the following technological processes of vacuum induction smelting, vacuum arc remelting, temperature-controlled free forging and solid solution aging treatment. The method is achieved through the vacuum induction mel