| 摘要 |
PROBLEM TO BE SOLVED: To provide an Ni-Fe-based superalloy having high strength and toughness at higher temperature in an environment of being exposed to high temperature, to provide a method for producing the same, to provide a turbine disk using the same, to provide a method for producing the same, to provide a turbine spacer, to provide a method for producing the same, and to provide a gas turbine. SOLUTION: The Ni-Fe-based superalloy has a composition comprising, by weight,≤0.03% C, 14 to 18% Cr, 15 to 45% Fe, 0.5 to 2.0% Al,≤0.05% N, 1.0 to 2.0% Ti and 1.5 to 5.0% Nb, and the balance essential Ni. COPYRIGHT: (C)2006,JPO&NCIPI
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