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    • 3. 发明申请
    • Nickel-base alloy
    • 镍基合金
    • US20050178480A1
    • 2005-08-18
    • US10065217
    • 2002-09-26
    • Cyril BeckJohn WoodStephen GrahamWarren King
    • Cyril BeckJohn WoodStephen GrahamWarren King
    • C22C19/05C22F1/10
    • C22C19/055C22F1/10
    • A family of castable and weldable nickel-base alloys that exhibit a desirable balance of strength and resistance to corrosion and oxidation suitable for gas turbine engine applications. A first alloy consists essentially of, by weight, 1 8% to 20% cobalt, 22.2% to 22.8% chromium, 1.8% to 2.2% tungsten, greater than 1.5% to 2.3% aluminum, 1.6% to 2.4% titanium, where the sum of aluminum and titanium is 2.8% to 4.4%, 0.7% to 0.9% columbium, 0.9% to 1.9% tantalum, 0.003% to 0.009% boron, 0.002% to 0.02% zirconium, 0.05% to 0.10% carbon, with the balance essentially nickel and incidental impurities. A second alloy consists essentially of, by weight, 5% to 8% cobalt, 22.2% to 22.8% chromium, 1.8% to 2.2% tungsten, 1.2% to 2.3% aluminum, 1.6% to 2.4% titanium, where the sum of aluminum and titanium is 2.8% to 4.4%, 0.7% to 0.9% columbium, 0.9% to 1.9% tantalum, 0.003% to 0.009% boron, 0.002% to 0.02% zirconium, 0.05% to 0.10% carbon, with the balance essentially nickel and incidental impurities.
    • 一系列可浇铸和可焊接的镍基合金,其表现出适合于燃气轮机发动机应用的强度和抗腐蚀和抗氧化性能的理想平衡。 第一种合金基本上由重量百分数为18%至20%的钴,22.2%至22.8%的铬,1.8%至2.2%的钨,大于1.5%至2.3%的铝,1.6%至2.4%的钛,其中 铝和钛的总和为2.8%至4.4%,铌0.7%至0.9%,钽0.9%至1.9%,硼0.003%至0.009%,碳0.002%至0.02%,碳0.05%至0.10% 基本上是镍和杂质。 第二种合金主要由重量百分比为5%至8%的钴,22.2%至22.8%的铬,1.8%至2.2%的钨,1.2%至2.3%的铝,1.6%至2.4%的钛,其中铝的总和 和钛为2.8〜4.4%,铌为0.7〜0.9%,钽为0.9〜1.9%,硼0.003〜0.009%,锆为0.002〜0.02%,碳为0.05〜0.10%,余量基本为镍, 附带杂质。