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US09574451B2 Ni-based superalloy, and turbine rotor and stator blades for gas turbine using the same 有权
镍基超级合金，以及使用其的燃气轮机的涡轮转子和定子叶片

Ni-based superalloy, and turbine rotor and stator blades for gas turbine using the same
Abstract:
An object of the present invention is to provide a Ni-based superalloy, especially for a conventional casting, having a good balance among high temperature strength, corrosion resistance and oxidation resistance, as compared to a conventional material. The Ni-based superalloy comprises Cr, Co, Al, Ti, Ta, W, Mo, Nb, C, B, and inevitable impurities, the balance being Ni, the Ni-based superalloy having a superalloy composition comprising, by mass, 13.1 to 16.0% Cr, 11.1 to 20.0% Co, 2.30 to 3.30% Al, 4.55 to 6.00% Ti, 2.50 to 3.50% Ta, 4.00 to 5.50% W, 0.10 to 1.20% Mo, 0.10 to 0.90% Nb, 0.05 to 0.20% C, and 0.005 to 0.02% B.
Abstract(Chinese):

本发明的目的是提供一种与常规材料相比具有高温强度，耐腐蚀性和耐氧化性之间良好平衡的常规铸造的Ni基超级合金。 所述Ni基超合金包含Cr，Co，Al，Ti，Ta，W，Mo，Nb，C，B和不可避免的杂质，余量为Ni，具有超合金组成的Ni系超合金， 至16.0％的Cr，11.1〜20.0％的Co，2.30〜3.30％的Al，4.55〜6.00％的Ti，2.50〜3.50％的Ta，4.00〜5.50％的W，0.10〜1.20的Mo，0.10〜0.90的Nb，0.05〜0.20 ％C，0.005〜0.02％B

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