Fused salt corrosion resistant nickel-based deformable high-temperature alloy and preparation method thereof

The invention relates to a fused salt corrosion resistant nickel-based deformable high-temperature alloy which comprises the following chemical components in percentage by weight: 5.0-8.0% of Cr, 15.0-28.0% of W, 0.5-0.55% of Fe, 0.5-0.8% of Mn, 0.1-0.3% of Si, 0.05-0.06% of C, 0-1.0% of Mo, 0-0.2% of Ti and the balance of Ni. The invention further provides a preparation method for the fused salt corrosion resistant nickel-based deformable high-temperature alloy. The fused salt corrosion resistant nickel-based deformable high-temperature alloy has the advantage that the machinable property is excellent, the high-temperature mechanical property and the structure stability are higher, and the tensile strength and the long-term service life are obviously superior to that of Hastelloy N alloy; the alloy is excellent in fused salt corrosion resistance, is suitable for high-temperature structural material of a fused salt nuclear reactor, and is excellent in overall performance at the operating temperature of 800-850 DEG C.