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公开(公告)号：US20130022803A1
公开(公告)日：2013-01-24
申请号：US13408550
申请日：2012-02-29
CPC分类号： B22D27/045 , C22C19/056 , C22C19/057 , C30B11/003 , C30B29/52 , F01D5/147 , F05D2230/21 , F05D2300/606
摘要： A process capable of producing large metallic castings having lengths of one hundred centimeters or more and a unidirectional crystal structure substantially free of freckle defects. The process includes preheating a mold within a heating zone of a directional casting apparatus, pouring a molten metal alloy into a cavity of the mold, and then withdrawing the mold from the heating zone, through a heat shield, and into a cooling zone of the directional casting apparatus to directionally solidify the molten metal alloy within the cavity. The heating and cooling zones establish an axial thermal gradient that defines a solidification front in the molten metal alloy within the cavity. The mold is withdrawn at a withdrawal rate that, in combination with the axial thermal gradient, causes the solidification front to be substantially flat and perpendicular to the withdrawal direction.
摘要翻译： 一种能够生产长度为100厘米或更大的大型金属铸件和基本上不含雀斑缺陷的单向晶体结构的方法。 该方法包括在定向铸造设备的加热区域内预热模具，将熔融金属合金浇注到模具的空腔中，然后通过隔热罩将模具从加热区域抽出，并进入冷却区域 定向铸造装置，以在腔内定向凝固熔融金属合金。 加热和冷却区域建立轴向热梯度，其限定腔内的熔融金属合金中的固化前沿。 以退出速率取出模具，其结合轴向热梯度使固化前沿基本上平坦且垂直于排出方向。
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公开(公告)号：US20100071812A1
公开(公告)日：2010-03-25
申请号：US12237562
申请日：2008-09-25
CPC分类号： B22D27/045 , C30B11/003 , C30B29/52 , F05B2230/21 , F05C2253/083
摘要： A process capable of producing large metallic castings having lengths of one hundred centimeters or more and a unidirectional crystal structure substantially free of freckle defects. The process includes pouring a molten metal alloy into a preheated mold within a heating zone, withdrawing the mold from the heating zone, through a heat shield, and into a cooling zone to directionally solidify the molten metal alloy, and then cooling the mold to produce the casting and the unidirectional crystal structure thereof. The heat shield operates as a barrier to thermal radiation between the heating zone and the cooling zone, and the mold is withdrawn at a rate that, in combination with the heat shield, maintains a thermal gradient to solidify the molten metal alloy and form primary dendrite arms having an average spacing therebetween of about 150 to about 500 micrometers.
摘要翻译： 一种能够生产长度为100厘米或更大的大型金属铸件和基本上不含雀斑缺陷的单向晶体结构的方法。 该方法包括将熔融金属合金浇注到加热区域内的预热模具中，通过隔热罩将模具从加热区域中取出，并进入冷却区域以使熔融金属合金定向凝固，然后冷却模具以产生 铸造及其单向晶体结构。 隔热罩作为加热区域和冷却区域之间的热辐射的屏障，并以与隔热层结合的温度保持热梯度以固化熔融金属合金并形成初级枝晶的速率取出模具 具有约150至约500微米的平均间隔的臂。
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公开(公告)号：US20120282086A1
公开(公告)日：2012-11-08
申请号：US13100441
申请日：2011-05-04
申请人： Ganjiang Feng , Jon Conrad Schaeffer , Stephen Joseph Balsone , Hariharan Sundaram , Sundar Amancherla , Gitahi Charles Mukira
发明人： Ganjiang Feng , Jon Conrad Schaeffer , Stephen Joseph Balsone , Hariharan Sundaram , Sundar Amancherla , Gitahi Charles Mukira
CPC分类号： C22C19/056 , C22C19/05 , F01D5/28 , F05D2300/607
摘要： The invention is a class of nickel-base alloys for gas turbine applications, comprising, by weight, about 13.7 to about 14.3 percent chromium, about 5.0 to about 10.0 percent cobalt, about 3.5 to about 5.2 percent tungsten, about 2.8 to about 5.2 percent titanium, about 2.8 to about 4.6 percent aluminum, about 0.0 to about 3.5 percent tantalum, about 1.0 to about 1.7 percent molybdenum, about 0.08 to about 0.13 percent carbon, about 0.005 to about 0.02 percent boron, about 0.0 to about 1.5 percent niobium, about 0.0 to about 2.5 percent hafnium, about 0.0 to about 0.04 percent zirconium, and the balance substantially nickel. The nickel-base alloys may be provided in the form of useful articles of manufacture, and which possess a unique combination of mechanical properties, microstructural stability, resistance to localized pitting and hot corrosion in high temperature corrosive environments, and high yields during the initial forming process as well as post-forming manufacturing and repair processes.
摘要翻译： 本发明是一类用于燃气轮机应用的镍基合金，其重量包含约13.7-约14.3％的铬，约5.0-约10.0％的钴，约3.5-约5.2％的钨，约2.8-约5.2％ 钛，约0.08至约4.6％的铝，约0.0至约3.5％的钽，约1.0至约1.7％的钼，约0.08至约0.13％的碳，约0.005至约0.02％的硼，约0.0至约1.5％的铌， 约0.0至约2.5％的铪，约0.0至约0.04％的锆，余量基本上为镍。 镍基合金可以以有用的制品形式提供，并且具有机械性能，微结构稳定性，耐高温腐蚀性环境中的局部点蚀和热腐蚀的独特组合，以及在初始成型期间的高产率 过程以及后成型制造和维修过程。
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公开(公告)号：US08186418B2
公开(公告)日：2012-05-29
申请号：US12894998
申请日：2010-09-30
CPC分类号： B22D27/045
摘要： An apparatus and method for casting an alloy using a unidirectional casting technique. The apparatus includes a mold adapted to contain a molten quantity of an alloy, a primary heating zone adapted to heat the mold and the molten alloy therein to a temperature above the liquidus temperature of the alloy, a cooling zone adapted to cool the mold and molten alloy therein to a temperature below the solidus temperature of the alloy and thereby yield the unidirectionally-solidified casting, and an insulation zone between the primary heating zone and the cooling zone. The apparatus also has a secondary heating zone separated from the insulation zone by the primary heating zone. The secondary heating zone maintains the mold and the molten alloy therein at a temperature below the liquidus temperature of the alloy. The temperatures within the primary and secondary heating zones are individually set and controlled.
摘要翻译： 一种使用单向铸造技术铸造合金的装置和方法。 该装置包括适于容纳熔融量的合金的模具，适于将模具和其中的熔融合金加热到高于合金液相线温度的温度的主加热区，适于冷却模具和熔融的冷却区 合金的温度低于合金的固相线温度，从而产生单向凝固的铸造，以及主加热区和冷却区之间的绝缘区。 该装置还具有通过主加热区与绝缘区隔开的二次加热区。 二次加热区在低于合金液相线温度的温度下保持模具和熔融合金。 初级加热区和二次加热区内的温度可单独设定和控制。
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公开(公告)号：US20120080158A1
公开(公告)日：2012-04-05
申请号：US12894998
申请日：2010-09-30
IPC分类号： B22D27/04
CPC分类号： B22D27/045
摘要： An apparatus and method for casting an alloy using a unidirectional casting technique. The apparatus includes a mold adapted to contain a molten quantity of an alloy, a primary heating zone adapted to heat the mold and the molten alloy therein to a temperature above the liquidus temperature of the alloy, a cooling zone adapted to cool the mold and molten alloy therein to a temperature below the solidus temperature of the alloy and thereby yield the unidirectionally-solidified casting, and an insulation zone between the primary heating zone and the cooling zone. The apparatus also has a secondary heating zone separated from the insulation zone by the primary heating zone. The secondary heating zone maintains the mold and the molten alloy therein at a temperature below the liquidus temperature of the alloy. The temperatures within the primary and secondary heating zones are individually set and controlled.
摘要翻译： 一种使用单向铸造技术铸造合金的装置和方法。 该装置包括适于容纳熔融量的合金的模具，适于将模具和其中的熔融合金加热到高于合金液相线温度的温度的主加热区，适于冷却模具和熔融的冷却区 合金的温度低于合金的固相线温度，从而产生单向凝固的铸造，以及主加热区和冷却区之间的绝缘区。 该装置还具有通过主加热区与绝缘区隔开的二次加热区。 二次加热区在低于合金液相线温度的温度下保持模具和熔融合金。 初级加热区和二次加热区内的温度可单独设定和控制。
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6.发明授权Alumina-forming cobalt-nickel base alloy and method of making an article therefrom 有权氧化铝形成钴镍基合金及其制品的制造方法公开(公告)号：US09034247B2
公开(公告)日：2015-05-19
申请号：US13156614
申请日：2011-06-09
申请人： Akane Suzuki , Andrew John Elliott , Michael Francis Xavier Gigliotti, Jr. , Kathleen Blanche Morey , Jon Conrad Schaeffer , Pazhayannur Subramanian
发明人： Akane Suzuki , Andrew John Elliott , Michael Francis Xavier Gigliotti, Jr. , Kathleen Blanche Morey , Jon Conrad Schaeffer , Pazhayannur Subramanian
CPC分类号： C22C19/07 , C22C19/056 , C22C19/057 , C22F1/10 , C23C8/10
摘要： A cobalt-nickel base alloy is disclosed. The alloy includes, in weight percent: greater than about 4 % of Al, about 10 to about 20 % of W, about 10 to about 40 % Ni, about 5 to 20 % Cr and the balance Co and incidental impurities. The alloy has a microstructure that is substantially free of a CoAl phase having a B2 crystal structure and configured to form a continuous, adherent aluminum oxide layer on an alloy surface upon exposure to a high-temperature oxidizing environment. A method of making an article of the alloy includes: selecting the alloy; forming an article from the alloy; solution-treating the alloy; and aging the alloy to form an alloy microstructure that is substantially free of a CoAl phase having a B2 crystal structure, wherein the alloy is configured to form a continuous, adherent aluminum oxide layer on an alloy surface upon exposure to a high-temperature oxidizing environment.
摘要翻译： 公开了一种钴 - 镍基合金。 该合金包括以重量％计：大于约4％的Al，约10至约20％的W，约10至约40％的Ni，约5至20％的Cr以及余量为Co和杂质。 该合金具有基本上不含具有B2晶体结构的CoAl相的微结构，并且构造成在暴露于高温氧化环境时在合金表面上形成连续的附着氧化铝层。 制造合金制品的方法包括：选择合金; 从合金制成制品; 溶液处理合金; 并且老化该合金以形成基本上不含具有B2晶体结构的CoAl相的合金微结构，其中该合金构造成在暴露于高温氧化环境时在合金表面上形成连续的粘附氧化铝层 。
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公开(公告)号：US08857055B2
公开(公告)日：2014-10-14
申请号：US12697005
申请日：2010-01-29
申请人： Bin Wei , Jon Conrad Schaeffer , Ronald Scott Bunker , Wenwu Zhang , Kathleen Blanche Morey , Jane Marie Lipkin , Benjamin Paul Lacy , Wilbur Douglas Scheidt
发明人： Bin Wei , Jon Conrad Schaeffer , Ronald Scott Bunker , Wenwu Zhang , Kathleen Blanche Morey , Jane Marie Lipkin , Benjamin Paul Lacy , Wilbur Douglas Scheidt
IPC分类号： B21D53/78 , B21K3/04 , B23P15/02 , F02C7/18 , F01D25/12 , B23K26/38 , B23K26/06 , B23K26/30 , B23K26/08
CPC分类号： F02C7/18 , B23K26/0624 , B23K26/082 , B23K26/384 , B23K26/389 , B23K26/60 , B23K26/702 , B23K2101/001 , B23K2101/34 , F01D25/12 , F05D2230/00 , F05D2230/13 , Y10T29/49316 , Y10T29/4932 , Y10T29/49336 , Y10T29/49339 , Y10T29/49341 , Y10T29/49348 , Y10T29/49799
摘要： A process is provided for forming shaped air holes, such as for use in turbine blades. Aspects of the disclosure relate to forming shaped portions of air holes using a short pulse laser, forming a metered hole corresponding to each shaped portion, and separately finishing the shaped portion using a short-pulse laser. In other embodiments, the order of these operations may be varied, such as to form the shaped portions and to finish the shaped portions using the short-pulse laser prior to forming the corresponding metered holes.
摘要翻译： 提供了一种用于形成成形气孔的方法，例如用于涡轮叶片。 本公开的方面涉及使用短脉冲激光器形成空气孔的成形部分，形成与每个成形部分相对应的计量孔，并且使用短脉冲激光单独精加工成形部分。 在其他实施例中，可以改变这些操作的顺序，诸如形成成形部分，并且在形成相应的计量孔之前使用短脉冲激光来完成成形部分。
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8.发明授权公开(公告)号：US08663403B2
公开(公告)日：2014-03-04
申请号：US13155775
申请日：2011-06-08
CPC分类号： C21D8/005 , C21D2211/008 , C22C38/20 , C22C38/42
摘要： A precipitation-hardened stainless steel alloy comprises, by weight: about 14.0 to about 16.0 percent chromium; about 6.0 to about 8.0 percent nickel; about 1.25 to about 1.75 percent copper; greater than about 1.5 to about 2.0 percent molybdenum; about 0.001 to about 0.025 percent carbon; niobium in an amount greater than about twenty times that of carbon; and the balance iron and incidental impurities. The alloy has an aged microstructure and an ultimate tensile strength of at least about 1100 MPa and a Charpy V-notch toughness of at least about 69 J. In one embodiment, the aged microstructure includes martensite and not more than about 10% reverted austenite. In another embodiment, the alloy includes substantially all martensite and substantially no reverted austenite. The alloy is useful for making turbine airfoils.
摘要翻译： 沉淀硬化的不锈钢合金包含：重量：约14.0至约16.0％的铬; 约6.0至约8.0％的镍; 约1.25至约1.75％的铜; 大于约1.5至约2.0％的钼; 约0.001至约0.025％的碳; 铌的数量大于碳的二十倍; 余铁和附带杂质。 该合金具有老化的微结构和至少约1100MPa的极限拉伸强度和至少约69J的夏比V-缺口韧性。在一个实施方案中，老化的微结构包括马氏体和不超过约10％的还原奥氏体。 在另一个实施方案中，合金基本上包括所有马氏体并且基本上不含回复的奥氏体。 该合金可用于制造涡轮机翼型。
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9.发明授权公开(公告)号：US07985306B2
公开(公告)日：2011-07-26
申请号：US12365335
申请日：2009-02-04
摘要： A precipitation-hardened stainless steel alloy comprises, by weight: about 14.0 to about 16.0 percent chromium; about 6.0 to about 7.0 percent nickel; about 1.25 to about 1.75 percent copper; about 0.5 to about 2.0 percent molybdenum; about 0.025 to about 0.05 percent carbon; niobium in an amount greater than about twenty times to about twenty-five times that of carbon; and the balance iron and incidental impurities. The alloy has an aged microstructure and an ultimate tensile strength of at least about 1100 MPa and a Charpy V-notch toughness of at least about 69 J. The aged microstructure includes martensite and not more than about 10% reverted austenite and is useful for making turbine airfoils.
摘要翻译： 沉淀硬化的不锈钢合金包含：重量：约14.0至约16.0％的铬; 约6.0至约7.0％的镍; 约1.25至约1.75％的铜; 约0.5至约2.0％的钼; 约0.025至约0.05％的碳; 铌的量大于碳的二十倍至二十五倍; 余铁和附带杂质。 该合金具有老化的微观结构和至少约1100MPa的极限拉伸强度和至少约69J的夏比V-缺口韧性。老化的微结构包括马氏体和不超过约10％的还原奥氏体，并且可用于制备 涡轮机翼型。
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公开(公告)号：US07766983B2
公开(公告)日：2010-08-03
申请号：US11714964
申请日：2007-03-07
CPC分类号： C10L9/10 , C10L3/003 , Y10S977/773
摘要： A corrosion inhibitor composition for a fuel, comprising a plurality of nanoparticles formed of an inorganic composition having an average longest dimension of 1 nanometer to 100 nanometers, wherein the inorganic active composition is insoluble in the fuel and is adapted to react with a corrosion causing contaminant.
摘要翻译： 一种用于燃料的腐蚀抑制剂组合物，其包含由平均最长尺寸为1纳米至100纳米的无机组合物形成的多个纳米颗粒，其中无机活性组合物不溶于燃料并适于与腐蚀引起的污染物反应 。
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