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CORROSION RESISTANT NICKEL ALLOY COMPOSITIONS WITH ENHANCED CASTABILITY AND MECHANICAL PROPERTIES
CORROSION RESISTANT NICKEL ALLOY COMPOSITIONS WITH ENHANCED CASTABILITY AND MECHANICAL PROPERTIES
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机译：具有增强的稳定性和机械性能的耐腐蚀镍合金成分
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摘要
Disclosed are novel nickel-base alloy compositions that may be cast as a single crystal or directionally solidified alloy consisting of, by weight: 8-12% Cr, 10-14% Co, 0.3-0.9% Mo, 3-7% W, 2-8% Ta, 2.0-5.5% Al, 1.5-5.0 % Ti, up to 2% Nb, less than 0.1% B, less than 0.1% Zr, 0.05-0.15% C, less than 0.5% Hf, 2-4% Re, 0.05-0.2% Si, up to 0.015% S, up to 0.1% La, up to 0.1% Y, up to 0.1% Ce, up to 0.1% Nd, up to 0.1% Dy, up to 0.1% Pr, up to 0.1% Gd, balance Ni, and wherein (La+Y+Ce+Nd+Dy+Pr+Gd) is 0.001-0.1%. The compositions for the nickel-base superalloy have a balance between oxidation resistance, corrosion resistance, castability, and mechanical properties, such as creep resistance and thermo-mechanical fatigue resistance.
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机译：公开了新颖的镍基合金组合物，其可以铸造为单晶或定向凝固的合金，其按重量计包括：8-12％Cr，10-14％Co，0.3-0.9％Mo，3-7％W， 2-8％Ta，2.0-5.5％Al，1.5-5.0％Ti，高达2％Nb，小于0.1％B，小于0.1％Zr，0.05-0.15％C，小于0.5％Hf，2- 4％Re，0.05-0.2％Si，最高0.015％S，最高0.1％La，最高0.1％Y，最高0.1％Ce，最高0.1％Nd，最高0.1％Dy，最高0.1％ Pr，最高为0.1％Gd，其余为Ni，并且其中（La + Y + Ce + Nd + Dy + Pr + Gd）为0.001-0.1％。用于镍基高温合金的组合物在耐氧化性，耐腐蚀性，可铸造性和机械性能如耐蠕变性和耐热机械疲劳性之间达到平衡。
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