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公开(公告)号：US20110052409A1
公开(公告)日：2011-03-03
申请号：US12550919
申请日：2009-08-31
CPC分类号： C22C19/03 , C22C19/05 , C22C19/051 , C22C19/056 , C22F1/10
摘要： A process and alloy for producing a turbine blade whose properties enable the blade to operate within a steam turbine at maximum operating temperatures of greater than 1300° F. (about 705° C.). The process includes casting the blade from a gamma prime-strengthened nickel-base superalloy having a composition of, by weight, 14.25-15.75% cobalt, 14.0-15.25% chromium, 4.0-4.6% aluminum, 3.0-3.7% titanium, 3.9-4.5% molybdenum, 0.05-0.09% carbon, 0.012-0.020% boron, maximum 0.5% iron, maximum 0.2% silicon, maximum 0.15% manganese, maximum 0.04% zirconium, maximum 0.015% sulfur, maximum 0.1% copper, balance nickel and incidental impurities, and an electron vacancy number of 2.32 maximum. The casting then undergoes a high temperature solution heat treatment to promote resistance to hold-time cracking. The blade exhibits a combination of yield strength, stress rupture properties, environmental resistance, and cost in steam turbine applications to 1400° F. (about 760° C.).
摘要翻译： 一种用于生产涡轮叶片的方法和合金，其特性使得叶片能够在大于1300°F（约705℃）的最大工作温度下在蒸汽轮机内工作。 该方法包括从具有14.25-15.75％的钴，14.0-15.25％的铬，4.0-4.6％的铝，3.0-3.7％的钛，3.9％的钴的重量组成的γ加强的镍基超级合金铸造该叶片， 4.5％钼，0.05-0.09％碳，0.012-0.020％硼，最大0.5％铁，最大0.2％硅，最大0.15％锰，最大0.04％锆，最大0.015％硫，最大0.1％铜，余量镍和附带 杂质，电子空位数最大为2.32。 然后铸造进行高温固溶热处理以促进耐久性开裂。 该叶片在1400°F（约760℃）下显示了汽轮机应用中的屈服强度，应力断裂性能，耐环境性能和成本的组合。
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公开(公告)号：US20110036471A1
公开(公告)日：2011-02-17
申请号：US12898788
申请日：2010-10-06
申请人： Afina Lupulescu , Robert Edward Deallenbach , Robin Carl Schwant , Jeffrey Michael Breznak , Jeffrey Allen Hawk
发明人： Afina Lupulescu , Robert Edward Deallenbach , Robin Carl Schwant , Jeffrey Michael Breznak , Jeffrey Allen Hawk
CPC分类号： C22F1/10 , C22C19/05 , C22C19/055
摘要： A component made of an alloy including carbon at less than approximately 0.04 weight percent, manganese at about 0.0 to about 0.2 weight percent, silicon at about 0.0 to about 0.25 weight percent, phosphorus at about 0.0 to about 0.015 weight percent, sulfur at about 0.0 to about 0.015 weight percent, chromium from about 20.0 to about 23.0 weight percent, molybdenum from about 8.5 to about 9.5 weight percent, niobium from about 3.25 to about 4 weight percent, tantalum at about 0.0 to about 0.05 weight percent, titanium from about 0.2 to about 0.4 weight percent, aluminum from about 0.15 to about 0.3 weight percent, iron from about 3.0 to about 4.5 weight percent, and the remainder being nickel. The alloy may then be subjected to heat treatment procedures such as annealing at a temperature of less than approximately 982° C. and a duration of less than approximately one hour and aging at a temperature between approximately 538° C. and 760° C. and a duration of up to approximately 100 hours. Methods of treating an alloy are also disclosed.
摘要翻译： 由包含小于约0.04重量％的碳，约0.0至约0.2重量％的锰，约0.0至约0.25重量％的硅，约0.0至约0.015重量％的磷，约0.0至约0.015重量％的硫的合金制成的组分 约0.015重量％，约20.0至约23.0重量％的铬，约8.5至约9.5重量％的钼，约3.25至约4重量％的铌，约0.0至约0.05重量％的钽，约0.2重量％的钛 至约0.4重量％的铝，约0.15至约0.3重量％的铝，约3.0至约4.5重量％的铁，其余为镍。 然后可以对合金进行热处理程序，例如在小于约982℃的温度下退火并且持续时间小于约1小时，并在约538℃至760℃之间的温度下老化，以及 持续时间长达约100小时。 还公开了处理合金的方法。
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公开(公告)号：US08597440B2
公开(公告)日：2013-12-03
申请号：US12550919
申请日：2009-08-31
CPC分类号： C22C19/03 , C22C19/05 , C22C19/051 , C22C19/056 , C22F1/10
摘要： A process and alloy for producing a turbine blade whose properties enable the blade to operate within a steam turbine at maximum operating temperatures of greater than 1300° F. (about 705° C.). The process includes casting the blade from a gamma prime-strengthened nickel-base superalloy having a composition of, by weight, 14.25-15.75% cobalt, 14.0-15.25% chromium, 4.0-4.6% aluminum, 3.0-3.7% titanium, 3.9-4.5% molybdenum, 0.05-0.09% carbon, 0.012-0.020% boron, maximum 0.5% iron, maximum 0.2% silicon, maximum 0.15% manganese, maximum 0.04% zirconium, maximum 0.015% sulfur, maximum 0.1% copper, balance nickel and incidental impurities, and an electron vacancy number of 2.32 maximum. The casting then undergoes a high temperature solution heat treatment to promote resistance to hold-time cracking. The blade exhibits a combination of yield strength, stress rupture properties, environmental resistance, and cost in steam turbine applications to 1400° F. (about 760° C.).
摘要翻译： 一种用于生产涡轮叶片的方法和合金，其特性使得叶片能够在大于1300°F（约705℃）的最大工作温度下在蒸汽轮机内工作。 该方法包括从具有14.25-15.75％的钴，14.0-15.25％的铬，4.0-4.6％的铝，3.0-3.7％的钛，3.9％的钴的重量组成的γ加强的镍基超级合金铸造该叶片， 4.5％钼，0.05-0.09％碳，0.012-0.020％硼，最大0.5％铁，最大0.2％硅，最大0.15％锰，最大0.04％锆，最大0.015％硫，最大0.1％铜，余量镍和附带 杂质，电子空位数最大为2.32。 然后铸造进行高温固溶热处理以促进耐久性开裂。 该叶片在1400°F（约760℃）下显示了汽轮机应用中的屈服强度，应力断裂性能，耐环境性能和成本的组合。
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