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公开(公告)号：US20070039175A1
公开(公告)日：2007-02-22
申请号：US11184154
申请日：2005-07-19
申请人： Michael Rucker , Bhupendra Gupta , Nripendra Das , David Budinger
发明人： Michael Rucker , Bhupendra Gupta , Nripendra Das , David Budinger
CPC分类号： B23P6/007 , B22D19/0081 , B22D19/10 , B23P6/045 , C23G5/00 , F01D5/005 , F05D2230/80 , Y10T29/49318 , Y10T29/49732 , Y10T29/49746
摘要： A method for repairing a turbine component includes identifying a crack in a surface of the component and applying a fluoride mixture to the surface of the component containing the crack. The method also includes exposing the portion of the component including the fluoride mixture to a controlled atmosphere and returning the repaired surface of the component to predetermined dimensions.
摘要翻译： 修复涡轮机部件的方法包括识别部件的表面中的裂纹并将氟化物混合物施加到包含裂纹的部件的表面。 该方法还包括将包含氟化物混合物的组分的部分暴露于受控气氛并将组分的修复表面返回到预定尺寸。
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公开(公告)号：US20070141272A1
公开(公告)日：2007-06-21
申请号：US11305930
申请日：2005-12-19
CPC分类号： C23C10/36 , F01D5/288 , F05D2230/236 , F05D2230/90
摘要： Methods and apparatus for forming a metal coating on a surface of a workpiece are provided. The method includes positioning the workpiece in a microwavable chamber, positioning a coating material in the microwavable chamber, and heating at least the workpiece and the coating material using microwave range electromagnetic energy such that a diffusion coating of the coating material is formed on the surface of the workpiece.
摘要翻译： 提供了在工件表面上形成金属涂层的方法和装置。 该方法包括将工件定位在可微波室中，将涂料定位在微波室内，并使用微波范围电磁能加热至少工件和涂层材料，使涂层材料的扩散涂层形成在 工件。
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公开(公告)号：US20070141385A1
公开(公告)日：2007-06-21
申请号：US11314755
申请日：2005-12-21
申请人： Michael Rucker , Bhupendra Gupta , Matthew Saylor , Nripendra Das
发明人： Michael Rucker , Bhupendra Gupta , Matthew Saylor , Nripendra Das
CPC分类号： F01D5/187 , C23C10/18 , C23C24/085 , F01D5/288 , F05D2230/314 , Y02T50/67 , Y02T50/676 , Y10T428/12944
摘要： A method of forming a metal coating on surfaces of internal passages of a turbine blade, the turbine blade having an outer surface and comprising at least one internal passage. The method includes injecting a paint into at least one of the internal passages of the turbine blade, and heat treating the turbine blade such that an aluminide coating is deposited on the surface of the at least one internal passage.
摘要翻译： 一种在涡轮机叶片的内部通道的表面上形成金属涂层的方法，该涡轮机叶片具有外表面并且包括至少一个内部通道。 该方法包括将油漆注入到涡轮机叶片的至少一个内部通道中，以及对涡轮机叶片进行热处理，使得铝化物涂层沉积在至少一个内部通道的表面上。
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公开(公告)号：US20070190245A1
公开(公告)日：2007-08-16
申请号：US11354363
申请日：2006-02-15
IPC分类号： B05D7/22
CPC分类号： C23C10/04 , C23C10/06 , C23C10/14 , Y02T50/67 , Y02T50/6765
摘要： A method of forming a metal coating on surfaces of internal passages of a turbine part includes applying a nickel aluminum bond coating to an external surface of the turbine part, positioning the turbine part in a VPA chamber, coupling a gas manifold to at least one internal passage inlet, and coating at least a portion of the internal surface and the external of the turbine part by a vapor phase aluminiding (VPA) process using metal coating gases to form a coating on the internal surfaces of the turbine part.
摘要翻译： 在涡轮机部分的内部通道的表面上形成金属涂层的方法包括将镍铝粘合涂层施加到涡轮部分的外表面，将涡轮部分定位在VPA室中，将气体歧管连接到至少一个内部 通过使用金属涂覆气体的气相铝化（VPA）方法涂覆涡轮机部分的内表面和外部的至少一部分，以在涡轮部分的内表面上形成涂层。
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公开(公告)号：US20070158398A1
公开(公告)日：2007-07-12
申请号：US11306711
申请日：2006-01-09
申请人： David Budinger , Ronald Galley , Nripendra Das
发明人： David Budinger , Ronald Galley , Nripendra Das
CPC分类号： B23K1/0018 , B23K1/19 , B23K2101/001 , Y10T428/12493 , Y10T428/12944
摘要： A process for brazing components formed of superalloys that contain elements prone to oxidation during brazing. At least one braze tape is applied to at least one faying surface of at least a first of the components being joined by brazing. The braze tape comprises a braze tape alloy containing the base metal of the superalloys and a melting point suppressant, and is applied so as to substantially cover the faying surface. The braze tape is then bonded to the faying surface by heating the first component to a temperature not exceeding the brazing temperature required to join the components. Thereafter, the components are assembled so that the bonded braze tape are between the respective faying surfaces of the components. The components are then brazed together by applying and heating a braze alloy to the braze temperature.
摘要翻译： 用于钎焊由超级合金形成的组分的方法，该组合含有在钎焊期间易于氧化的元素。 至少一个钎焊带被施加到通过钎焊连接的至少一个部件的至少一个接合表面。 钎焊带包括含有超级合金的贱金属和熔点抑制剂的钎焊合金，并且被施加以基本上覆盖引线表面。 然后通过将第一部件加热到不超过连接部件所需的钎焊温度的温度，将钎焊带粘合到接合表面。 此后，组件被组装成使得接合的钎焊带位于各部件的相应接合表面之间。 然后通过将钎焊合金施加并加热到钎焊温度将组分钎焊在一起。
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公开(公告)号：US20050084706A1
公开(公告)日：2005-04-21
申请号：US10685637
申请日：2003-10-15
CPC分类号： C23C10/06 , C23C10/02 , C23C10/14 , Y02T50/67 , Y10T428/12736
摘要： The present invention is process for forming diffusion aluminide coatings on an uncoated surface of a substrate, without interdiffusing a sufficient amount of aluminum into a coating layer to adversely affect the coating growth potential and mechanical properties of said coating layer. A metal substrate is provided comprising an external surface and an internal passage therein defined by an internal surface, at least a portion of the external surface of the substrate being coated with a coating layer selected from the group consisting of β-NiAl-base, MCrAlX, a line-of-sight diffusion aluminide, a non-line-of-sight diffusion aluminide, a pack diffusion aluminide, and a slurry diffusion aluminide on said substrate. The external surface of the substrate is cleaned. The metal substrate is subjected to a aluminum vapor phase deposition process performed using a fluorine-containing activator selected from the group consisting of AlF3, CrF3, NH4F, and combinations thereof, at a rate in the range of about 0.036 mols of fluorine per ft3/hr of transport gas to about 0.18 mols of fluorine per ft3/hr of transport gas, at a temperature in the range of about 1350° F. (730° C.) to about 1925° F. (1050° C.), using a transport gas selected from the group consisting of argon, nitrogen, hydrogen, and combinations thereof, the transport gas being provided at a flow rate in the range of about 20 ft3/hr to about 120 ft3/hr for a period of time in the range of about 2 hours to about 10 hours. The substrate is then cooled. The present invention is also a superalloy article coated with a diffusion aluminide layer using the diffusion aluminide coating process of the present invention.
摘要翻译： 本发明是在基材的未涂覆表面上形成扩散铝化物涂层的方法，而不会将足够量的铝相互扩散到涂层中，从而不利地影响涂层生长电位和所述涂层的机械性能。 提供了一种金属基底，其包括由内表面限定的外表面和内部通道，所述基底的外表面的至少一部分被涂覆有选自β-NiAl基，MCrAlX ，视线扩散铝化物，非视线扩散铝化物，包层扩散铝化物和在所述衬底上的浆料扩散铝化物。 清洁基板的外表面。 对金属基板进行铝蒸气相沉积工艺，该方法使用选自AlF 3 N 3，CrF 3 N，NH 4的含氟活化剂 F和它们的组合，以约0.036摩尔氟/ ft 3 /小时的运输气体至约0.18摩尔氟/ ft 3的范围内的速率， 在约1350°F（730℃）至约1925°F（1050℃）的温度范围内使用选自以下的输送气体： 氩气，氮气，氢气及其组合，输送气体的流速为约20ft 3 / hr至约120ft 3 / hr 一段时间在约2小时至约10小时的范围内。 然后将衬底冷却。 本发明也是使用本发明的扩散铝化物涂覆方法涂覆有扩散铝化物层的超级合金制品。
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公开(公告)号：US20060216422A1
公开(公告)日：2006-09-28
申请号：US11447806
申请日：2006-06-06
申请人： Nripendra Das , W. Gmerek , David Koch
发明人： Nripendra Das , W. Gmerek , David Koch
CPC分类号： C23C10/04 , C23C4/01 , C23C8/04 , F05B2230/90
摘要： A method for processing a substrate article is provided. The method includes masking a first portion of the substrate article with a maskant that includes a formed graphite piece that overlays and contacts the first portion of the substrate such that a second portion of the substrate is not overlaid nor contacted by the maskant; and processing the substrate article such that a coating of material is deposited on the second portion of the substrate, and wherein the maskant facilitates preventing the coating from being deposited on the first portion of the substrate article.
摘要翻译： 提供了一种处理基材制品的方法。 该方法包括用掩蔽剂掩蔽基材制品的第一部分，所述掩模包括形成的石墨片，其覆盖并接触基底的第一部分，使得基底的第二部分不被掩蔽剂覆盖或接触; 以及处理所述衬底制品，使得材料涂层沉积在所述衬底的所述第二部分上，并且其中所述掩模有助于防止所述涂层沉积在所述衬底制品的所述第一部分上。
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公开(公告)号：US20050053467A1
公开(公告)日：2005-03-10
申请号：US10655835
申请日：2003-09-05
申请人： John Ackerman , Michael Weimer , Joseph Heaney , Robert Zimmerman , Bangalore Nagaraj , Brian Hazel , Nripendra Das
发明人： John Ackerman , Michael Weimer , Joseph Heaney , Robert Zimmerman , Bangalore Nagaraj , Brian Hazel , Nripendra Das
CPC分类号： F01D5/288 , C23C10/02 , C23C16/16 , C23C16/20 , F05D2230/90 , F05D2300/611 , Y02T50/67
摘要： A turbine engine rotor component, such as a compressor or turbine disk or seal element, is protected from corrosion by depositing an aluminum or chromium coating on the component. The deposition can be performed by a vapor deposition process, such as metal organic chemical vapor deposition (MOCVD), to a coating thickness of from about 0.2 to about 50 microns, typically from about 0.5 to about 3 microns. In one embodiment, the method is conducted in a vapor coating container having a hollow interior coating chamber, and includes the steps of loading the coating chamber with the component to be coated; and flowing a tri-alkyl aluminum or chromium carbonyl coating gas into the loaded coating chamber at a specified temperature, pressure, and time to deposit an aluminum or chromium coating on the surface of the component. The coated component is then heated in a nonoxidizing atmosphere to a specified temperature to form an aluminide or chromide coating on the surface. The coated component is typically then heated or maintained at an elevated temperature in the presence of oxygen to form an oxide coating on the surface of the component.
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公开(公告)号：US20060141158A1
公开(公告)日：2006-06-29
申请号：US10458991
申请日：2003-06-11
申请人： Nripendra Das , W. Gmerek , David Koch
发明人： Nripendra Das , W. Gmerek , David Koch
IPC分类号： B05D3/00
CPC分类号： C23C10/04 , C23C4/01 , C23C8/04 , F05B2230/90
摘要： A method for processing a substrate article is provided. The method includes masking a first portion of the substrate article with a maskant that includes a formed graphite piece that overlays and contacts the first portion of the substrate such that a second portion of the substrate is not overlaid nor contacted by the maskant; and processing the substrate article such that a coating of material is deposited on the second portion of the substrate, and wherein the maskant facilitates preventing the coating from being deposited on the first portion of the substrate article.
摘要翻译： 提供了一种处理基材制品的方法。 该方法包括用掩蔽剂掩蔽基材制品的第一部分，所述掩模包括形成的石墨片，其覆盖并接触基底的第一部分，使得基底的第二部分不被掩蔽剂覆盖或接触; 以及处理所述衬底制品，使得材料涂层沉积在所述衬底的所述第二部分上，并且其中所述掩模有助于防止所述涂层沉积在所述衬底制品的所述第一部分上。
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公开(公告)号：US20050058547A1
公开(公告)日：2005-03-17
申请号：US10455649
申请日：2003-06-05
申请人： Robert Bruce , Nripendra Das , Thomas Mantkowski
发明人： Robert Bruce , Nripendra Das , Thomas Mantkowski
CPC分类号： F01D5/288 , F05D2230/90 , F05D2300/611 , Y02T50/67
摘要： A bond coat process for thermal barrier coatings. The method includes, after cleaning and masking the external surface of the substrate, first applying a layer of NiCrZr alloy to the external surface of the substrate using a sputter coat or other suitable process. Aluminum is then applied to the substrate, using either a vapor phase aluminization (VPA) or chemical vapor deposition (CVD) process, wherein aluminum diffuses into the NiCrZr alloy layer wherein a diffusion layer is formed by the aluminum with the substrate material on the internal surface of the substrate. The coated substrate may then be subjected to a heat treatment in a protective atmosphere to further allow diffusion of the aluminide into the NiAlCrZr diffusion layer. The substantially Al outer layers of the NiAlCrZr diffusion layer, and the diffusion aluminide layer, will provide an aluminum source for the surface, which will oxidize to form a tightly adherent aluminum scale. The diffusion aluminide layer and the high Al portion of the NiAlCrZr diffusion layer will also function as a source of aluminum which will provide a reservoir to heal the alumina scale during operation.
摘要翻译： 用于热障涂层的粘结涂层工艺。 该方法包括在清洁和掩蔽衬底的外表面之后，首先使用溅射涂层或其它合适的工艺将NiCrZr合金层施加到衬底的外表面上。 然后使用气相镀铝（VPA）或化学气相沉积（CVD）工艺将铝施加到衬底，其中铝扩散到NiCrZr合金层中，其中扩散层由铝形成，衬底材料在内部 基板的表面。 然后可以将涂覆的基底在保护气氛中进行热处理，以进一步允许铝化物扩散到NiAlCrZr扩散层中。 NiAlCrZr扩散层的基本Al外层和扩散铝化物层将为表面提供铝源，其将氧化以形成紧密粘附的铝垢。 NiAlCrZr扩散层的扩散铝化物层和高Al部分也将作为铝源，其将在操作期间提供用于愈合氧化铝垢的储存器。
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