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1.发明授权Diffusion aluminide bond coat for a thermal barrier coating system and method therefor 失效用于热障涂层体系的扩散铝化物粘合涂层及其方法公开(公告)号：US06458473B1
公开(公告)日：2002-10-01
申请号：US08786814
申请日：1997-01-21
申请人： Jeffrey A. Conner , Bangalore A. Nagaraj , Joseph A. Heaney, III , Nripendra N. Das , Patricia A. Zomcik , David J. Wortman , David V. Rigney , Jon C. Schaeffer
发明人： Jeffrey A. Conner , Bangalore A. Nagaraj , Joseph A. Heaney, III , Nripendra N. Das , Patricia A. Zomcik , David J. Wortman , David V. Rigney , Jon C. Schaeffer
IPC分类号： B21D3900
CPC分类号： C23C28/00 , C03C27/046 , C22C5/04 , C22C30/00 , C23C10/52 , F05B2230/90 , F05C2253/12 , Y10T428/12549 , Y10T428/12611 , Y10T428/12618 , Y10T428/12667
摘要： A thermal barrier coating system and a method for forming the coating system on a component designed for use in a hostile thermal environment, such as superalloy turbine, combustor and augmentor components of a gas turbine engine. The method is particularly directed to a thermal barrier coating system that includes a thermal insulating ceramic layer and a diffusion aluminide bond coat on which an aluminum oxide scale is grown to protect the underlying surface of the component and to chemically bond the ceramic layer. The bond coat is formed to contain an additive metal of platinum, palladium, rhodium, chromium and/or silicon, and an additive element of yttrium and/or zirconium, with possible additions of hafnium. The bond coat may be formed by codepositing aluminum with the active element, or by depositing the additive metal and active element on the surface of the component, and then aluminizing to form the diffusion aluminide bond coat.
摘要翻译： 一种热障涂层系统和一种在设计用于恶劣热环境的部件上形成涂层系统的方法，例如燃气涡轮发动机的超级合金涡轮机，燃烧器和增压器部件。 该方法特别涉及一种热障涂层系统，其包括绝热陶瓷层和扩散铝化物粘合涂层，其上生长氧化铝垢以保护部件的下表面并化学粘合陶瓷层。 形成粘合涂层以包含铂，钯，铑，铬和/或硅的添加金属和钇和/或锆的添加元素，可能添加铪。 粘结涂层可以通过将铝与活性元素共沉积，或者通过将添加剂金属和活性元素沉积在组分的表面上，然后镀铝以形成扩散铝化物粘合涂层而形成。
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2.发明授权
公开(公告)号：US5683825A
公开(公告)日：1997-11-04
申请号：US581819
申请日：1996-01-02
申请人： Robert W. Bruce , Jon C. Schaeffer , Mark A. Rosenzweig , Rudolfo Viguie , David V. Rigney , Antonio F. Maricocchi , David J. Wortman , Bangalore A. Nagaraj
发明人： Robert W. Bruce , Jon C. Schaeffer , Mark A. Rosenzweig , Rudolfo Viguie , David V. Rigney , Antonio F. Maricocchi , David J. Wortman , Bangalore A. Nagaraj
CPC分类号： C23C28/00
摘要： A thermal barrier coating adapted to be formed on an article subjected to a hostile thermal environment while subjected to erosion by particles and debris, as is the case with turbine, combustor and augmentor components of a gas turbine engine. The thermal barrier coating is composed of a metallic bond layer deposited on the surface of the article, a ceramic layer overlaying the bond layer, and an erosion-resistant composition dispersed within or overlaying the ceramic layer. The bond layer serves to tenaciously adhere the thermal insulating ceramic layer to the article, while the erosion-resistant composition renders the ceramic layer more resistant to erosion. The erosion-resistant composition is either alumina (Al.sub.2 O.sub.3) or silicon carbide (SiC), while a preferred ceramic layer is yttria-stabilized zirconia (YSZ) deposited by a physical vapor deposition technique to have a columnar grain structure.
摘要翻译： 一种隔热涂层，适于形成在经受恶劣热环境的制品上，同时受到颗粒和碎屑的侵蚀，如同燃气涡轮发动机的涡轮机，燃烧器和增压器部件的情况。 隔热涂层由沉积在物品表面上的金属粘合层，覆盖粘合层的陶瓷层和分散在陶瓷层内或覆盖陶瓷层的抗侵蚀组合物构成。 接合层用于将绝热陶瓷层牢固地粘附到制品上，而抗侵蚀组合物使得陶瓷层更耐侵蚀。 抗侵蚀组合物是氧化铝（Al 2 O 3）或碳化硅（SiC），而优选的陶瓷层是通过物理气相沉积技术沉积的具有柱状晶粒结构的氧化钇稳定的氧化锆（YSZ）。
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3.发明授权Alpha alumina protective coatings for bond-coated substrates and their preparation 失效用于粘合涂层基材的α氧化铝保护涂层及其制备
公开(公告)号：US5683761A
公开(公告)日：1997-11-04
申请号：US450647
申请日：1995-05-25
申请人： Robert W. Bruce , Mark A. Rosenzweig , Bangalore A. Nagaraj , Jon C. Schaeffer , William B. Connor , David J. Wortman
发明人： Robert W. Bruce , Mark A. Rosenzweig , Bangalore A. Nagaraj , Jon C. Schaeffer , William B. Connor , David J. Wortman
CPC分类号： C23C28/345 , C23C14/025 , C23C14/081 , C23C28/321 , C23C28/3455 , C23C4/02 , F01D5/288 , Y02T50/67 , Y02T50/671
摘要： A bond-coated substrate is protected with an alpha alumina layer. The alpha alumina layer may be deposited as a relatively thick layer directly onto the bond-coated substrate. In this embodiment, no further ceramic layer overlies the alpha alumina layer. Other ceramics may be mixed into the alpha alumina layer, however. In another embodiment, a layer of a ceramic other than alpha alumina is deposited over the bond-coated substrate, and an alpha alumina layer is deposited over the ceramic layer.
摘要翻译： 用α氧化铝层保护键合的基底。 可以将α氧化铝层作为相对较厚的层直接沉积到粘结涂覆的基底上。 在该实施例中，没有另外的陶瓷层覆盖在α氧化铝层上。 然而，其他陶瓷可以混合到α氧化铝层中。 在另一个实施方案中，除了α氧化铝之外的陶瓷层沉积在粘合涂覆的基底上，并且在氧化铝层上沉积α氧化铝层。
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4.发明授权
公开(公告)号：US6014263A
公开(公告)日：2000-01-11
申请号：US71109
申请日：1998-05-04
申请人： Jon C. Schaeffer , Nripendra N. Das , Brian F. Mickle , Ching-Ho Wang , Matthew S. Tomaszewski , Kevin G. McAllister
发明人： Jon C. Schaeffer , Nripendra N. Das , Brian F. Mickle , Ching-Ho Wang , Matthew S. Tomaszewski , Kevin G. McAllister
CPC分类号： G02B27/0006 , G02B1/105
摘要： A method for preventing clouding of a lens employed in a high-temperature oxidizing environment, an example of which is a lens of a pyrometer used to sense exhaust gas temperature (EGT) of a gas turbine engine. Clouding is prevented by inhibiting the generation of volatile oxide species that react with high-temperature lens materials, forming deposits including oxides of chromium, molybdenum and other elements having volatile oxide species. The method is particularly directed to a pyrometer whose lens is formed of sapphire (alumina) or silica, and is mounted within a structure formed of a material containing chromium and/or molybdenum, such as a superalloy or stainless steel. The method entails forming an alumina scale-forming barrier coating such as a diffusion aluminide on surfaces of the structure that are subject to oxidation and high temperatures. According to the invention, the alumina scale formed by the barrier coating inhibits the generation of other oxides at the coated surfaces, which would otherwise form volatile oxides that react with and form deposit on the lens. By inhibiting the formation of oxides other than alumina on surfaces surrounding the lens, lens clouding caused from volatile oxides is avoided. As a result, the optical performance of the lens is not degraded, and the precision of a pyrometer employing the lens to sense temperatures is maintained during operation of the engine.
摘要翻译： 一种用于防止在高温氧化环境中使用的透镜的混浊的方法，其实例是用于感测燃气涡轮发动机的排气温度（EGT）的高温计的透镜。 通过抑制与高温透镜材料反应的挥发性氧化物物质的产生，形成含有铬，钼和其它具有挥发性氧化物的元素的沉积物来防止云层。 该方法特别涉及其透镜由蓝宝石（氧化铝）或二氧化硅形成的高温计，并且安装在由含有铬和/或钼的材料（例如超级合金或不锈钢）形成的结构内。 该方法需要在经受氧化和高温的结构的表面上形成氧化铝垢形成阻挡涂层，例如扩散铝化物。 根据本发明，通过阻挡涂层形成的氧化铝垢阻止了在涂覆表面产生其它氧化物，否则其将形成与透镜反应并形成沉积在透镜上的挥发性氧化物。 通过抑制在透镜周围的表面上形成氧化铝以外的氧化物，避免了由挥发性氧化物引起的透镜混浊。 结果，透镜的光学性能不降低，并且在发动机的操作期间保持采用透镜感测温度的高温计的精度。
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公开(公告)号：US5518820A
公开(公告)日：1996-05-21
申请号：US899562
申请日：1992-06-16
CPC分类号： F16C33/62 , F16C33/30 , F16C19/06 , Y10S384/912 , Y10T428/31678
摘要： A bearing includes a bearing component, such as a bearing race, having a bearing contact surface. A region at the bearing contact surface is made of titanium aluminide, preferably an alpha-2 or gamma titanium aluminide. A case-hardened layer present at the surface of the titanium aluminide region increases the hardness and wear resistance of the titanium aluminide at elevated temperature. The case-hardened layer is preferably formed by diffusing carbon into the surface of the titanium aluminide from a gaseous medium, at elevated temperature land at ambient or reduced pressure.
摘要翻译： 轴承包括具有轴承接触表面的轴承部件，例如轴承座圈。 轴承接触表面的区域由铝化铝，优选α-2或γ钛铝化物制成。 存在于铝化钛区域表面的表面硬化层增加了钛酸铝在高温下的硬度和耐磨性。 表面硬化层优选通过在环境温度或减压下在高温焊盘中从气态介质将碳扩散到钛铝化物的表面中而形成。
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公开(公告)号：US6054184A
公开(公告)日：2000-04-25
申请号：US902490
申请日：1997-07-29
申请人： Robert W. Bruce , Mark A. Rosenzweig , Jon C. Schaeffer , David J. Wortman , Norman R. Lindblad
发明人： Robert W. Bruce , Mark A. Rosenzweig , Jon C. Schaeffer , David J. Wortman , Norman R. Lindblad
CPC分类号： C23C14/083 , C23C14/081 , C23C14/30 , C23C14/505 , C23C14/568
摘要： A method and apparatus for forming a multilayer thermal barrier coating such that the coating is composed of substantially homogeneous layers of different ceramic materials. The method entails supporting an article within a coating apparatus and in proximity to ceramic ingots of the different ceramic materials, and then simultaneously directing electron beams at both ingots so as to maintain a portion of each ingot in a molten state. According to a particular aspect of this invention, vapors of both ceramic materials coexist within the coating apparatus, yet each ceramic material is sequentially deposited onto the article by sequentially interrupting exposure of surfaces of the article to the vapors, such that the vapors form homogeneous successive layers on the surface. Exposure of the article to one or more of the vapors can be interrupted with a baffle, such that the vapor of only one of the ceramic ingots is directly deposited on a given surface of the article at any instant. The baffle can be employed in conjunction with the article being rotated at a constant or variable speed, and/or being translated above the members within the vessel to alter the relative thicknesses of the ceramic and an intermediate layer that is formed between adjacent layers and is composed of a mixture of the ceramic materials.
摘要翻译： 一种用于形成多层热障涂层的方法和装置，使得涂层由不同陶瓷材料的基本均匀的层组成。 该方法需要在涂覆装置内并且靠近不同陶瓷材料的陶瓷锭支撑制品，然后同时引导两个锭子处的电子束，以便将每个锭的一部分保持在熔融状态。 根据本发明的特定方面，两种陶瓷材料的蒸汽在涂覆设备中共存，但是每个陶瓷材料通过依次地将制品的表面暴露于蒸气而顺序地沉积到制品上，使得蒸气形成均匀的连续 表面上的层。 物品暴露于一个或多个蒸气可能会被挡板中断，使得只有一个陶瓷锭的蒸汽在任何时刻直接沉积在物品的给定表面上。 挡板可以与制品以恒定或可变速度一起旋转和/或在容器内的构件上方平移以改变陶瓷和相邻层之间形成的中间层的相对厚度，并且是 由陶瓷材料的混合物组成。
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公开(公告)号：US06391475B1
公开(公告)日：2002-05-21
申请号：US09522875
申请日：2000-03-10
IPC分类号： B32B1504
CPC分类号： F01D5/288 , C23C10/02 , C23C10/58 , C23C26/00 , C23C28/00 , Y02T50/67 , Y02T50/671 , Y10T428/12611 , Y10T428/1275 , Y10T428/12944
摘要： A nickel-base superalloy substrate has an overlying protective coating including a modified aluminum-containing protective layer. The modified aluminum-containing protective layer is formed of nickel, aluminum, calcium in an amount of from about 50 to about 300 parts per million by weight, and, optionally, elements interdiffused into the modified aluminum-containing protective layer from the substrate. Magnesium or barium may be used instead of or in addition to the calcium. A ceramic layer may overlie the modified aluminum-containing protective layer.
摘要翻译： 镍基超合金基板具有覆盖保护涂层，其包括改性的含铝保护层。 改性的含铝保护层由镍，铝，钙的重量百分比约为50〜300重量％，可选地，从基材相互扩散到改性含铝保护层中的元素形成。 可以使用镁或钡代替钙或除钙之外。 陶瓷层可以覆盖改性的含铝保护层。
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公开(公告)号：US06544346B1
公开(公告)日：2003-04-08
申请号：US08886504
申请日：1997-07-01
申请人： Warren D. Grossklaus, Jr. , Roger D. Wustman , John M. Powers , Jeffrey A. Conner , Jon C. Schaeffer
发明人： Warren D. Grossklaus, Jr. , Roger D. Wustman , John M. Powers , Jeffrey A. Conner , Jon C. Schaeffer
IPC分类号： B08B704
CPC分类号： C23G1/20 , B22D29/002 , B23P2700/06 , C23C10/02 , C23C28/321 , C23C28/3215 , C23C28/325 , C23C28/3455
摘要： A method of repairing a thermal barrier coating on a component designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The method is particularly suited for completely removing a thermal insulating ceramic layer of thermal barrier coating system that includes a metallic bond coat, such as a diffusion aluminide or MCrAlY coating, between the surface of the component and the ceramic layer, while leaving the bond coat substantially undamaged. Furthermore, the method of this invention includes a technique by which ceramic material within cooling holes in the component can be removed without damaging the underlying bond coat. The process steps generally include removing the ceramic layer from the surface of the component by subjecting the ceramic layer to a caustic solution at an elevated temperature and pressure, and then removing ceramic material from the cooling hole by carefully directing a high-velocity fluid stream into the cooling hole. According to this invention, the high-velocity fluid stream is able to overcome the compressive stresses that otherwise anchor the ceramic in the cooling hole, yet does not remove or damage the bond coat underlying the ceramic.
摘要翻译： 在设计用于恶劣热环境中的部件（例如燃气涡轮发动机的涡轮机，燃烧器和增压器部件）上修复热障涂层的方法。 该方法特别适于完全去除在元件表面和陶瓷层之间包括金属粘合涂层（例如扩散铝化物或MCrAlY涂层）的热障涂层系统的绝热陶瓷层，同时留下粘合涂层 基本没有损坏。 此外，本发明的方法包括可以除去组件内的冷却孔内的陶瓷材料而不损坏下面的粘合涂层的技术。 工艺步骤通常包括通过在升高的温度和压力下对陶瓷层进行苛性碱溶液从部件的表面除去陶瓷层，然后通过小心地将高速流体流引导到冷却孔中，从陶瓷材料中除去陶瓷材料 冷却孔。 根据本发明，高速流体流能够克服否则将陶瓷固定在冷却孔中的压缩应力，但是不会去除或损坏陶瓷下面的粘合涂层。
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公开(公告)号：US5851409A
公开(公告)日：1998-12-22
申请号：US772959
申请日：1996-12-24
CPC分类号： C23F1/44
摘要： A method for removing an environmental coating on an article intended for use in a hostile environment, such as turbine, combustor and augmentor components of a gas turbine engine. The method is particularly suited for the repair of diffusion aluminide coatings covered by a protective oxide scale, which may further include a thermal insulating ceramic outer layer. Processing steps generally include peening the environmental coating at a temperature below the ductile-to-brittle transition temperature of the diffusion coating, such that cracks are formed in the diffusion coating. Thereafter, the diffusion coating is subjected to an acidic solution that penetrates the cracks and interacts with the coating diffusion zone, resulting in the diffusion coating being chemically stripped from its underlying substrate.
摘要翻译： 一种用于去除旨在用于恶劣环境中的制品（例如燃气轮机的涡轮机，燃烧器和增压器部件）上的环境涂层的方法。 该方法特别适用于由保护性氧化皮覆盖的扩散铝化物涂层的修复，其可以进一步包括绝热陶瓷外层。 加工步骤通常包括在低于扩散涂层的韧性 - 脆性转变温度的温度下硬化环境涂层，使得在扩散涂层中形成裂纹。 此后，扩散涂层经受渗透裂缝的酸性溶液并与涂层扩散区相互作用，导致扩散涂层从其下面的基底被化学剥离。
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10.发明授权Low sulfur article having a platinum-aluminide protective layer, and its preparation 失效具有铂 - 铝化物保护层的低硫制品及其制备方法公开(公告)号：US06969558B2
公开(公告)日：2005-11-29
申请号：US10715783
申请日：2003-11-18
IPC分类号： B32B15/04 , C21D1/00 , C22F1/10 , C23C10/30 , C23C14/02 , C23C14/08 , C23C26/00 , C23C28/00 , C23C28/02 , C23C28/04 , C23C30/00 , F01D5/28 , F03B3/12
CPC分类号： C23C10/30 , C23C14/02 , C23C14/083 , C23C26/00 , C23C28/321 , C23C28/3455 , C23C30/00 , F01D5/288 , F05D2230/90 , Y02T50/67 , Y02T50/671 , Y10S428/941 , Y10T428/12493 , Y10T428/12535 , Y10T428/1259 , Y10T428/12611 , Y10T428/12618 , Y10T428/1266 , Y10T428/12736 , Y10T428/1275 , Y10T428/12771 , Y10T428/12778 , Y10T428/12875 , Y10T428/12944
摘要： A coated article is prepared by furnishing an nickel-base article substrate having a free sulfur content of more than 0 but less than about 1 part per million by weight. A protective layer is formed at a surface of the article substrate. The protective layer includes a platinum aluminide diffusion coating. The protective layer may be substantially yttrium-free, or have a controlled amount of yttrium. A ceramic layer may overlie the protective layer.
摘要翻译： 通过提供游离硫含量大于0但小于约1重量百分比的镍基制品基材来制备涂覆制品。 在制品基板的表面形成有保护层。 保护层包括铂铝化物扩散涂层。 保护层可以基本上不含钇，或具有受控量的钇。 陶瓷层可以覆盖保护层。
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