Turbine engine components with environmental protection for interior passages
    2.
    发明授权
    Turbine engine components with environmental protection for interior passages 有权
    涡轮发动机部件具有环境保护用于内部通道

    公开(公告)号:US08545185B2

    公开(公告)日:2013-10-01

    申请号:US11959595

    申请日:2007-12-19

    IPC分类号: F01D5/18

    摘要: Turbine airfoil components with protective layers and methods therefore. The components are each formed to have a platform, an airfoil extending upwardly from the platform, and a shank extending downwardly from the platform. The shank has an exterior wall and an internal passage, and the airfoil has a cooling flow channel inside the airfoil for flowing a cooling flow therethrough. The component has an interior chromide coating contacting at least a portion of an interior surface of the shank and interdiffused with a base metal thereof, and an exterior chromide coating contacting at least a portion of an exterior surface of the shank and interdiffused with the base metal thereof. The interior and exterior chromide coatings do not have an aluminide coating deposited thereon.

    摘要翻译: 涡轮机翼部件具有保护层和方法。 这些部件各自形成为具有平台,从平台向上延伸的翼型件和从平台向下延伸的柄部。 柄具有外壁和内部通道,并且翼型件具有用于使冷却流通过其中的翼型件内的冷却流动通道。 该组件具有内部铬化物涂层,其接触柄的内表面的至少一部分并且与其基体金属相互扩散,并且外部铬化物涂层与柄的外表面的至少一部分接触并与基底金属相互扩散 其中。 内部和外部铬酸盐涂层不具有沉积在其上的铝化物涂层。

    Coated article and method for repairing a coated surface

    公开(公告)号:US07093335B2

    公开(公告)日:2006-08-22

    申请号:US10189087

    申请日:2002-07-03

    IPC分类号: B23P6/00

    摘要: A method is provided for repairing a surface portion of an article including a metallic environmental resistant coating on a substrate. The coating includes a coating outer portion bonded with the substrate through a diffusion zone that includes at least one feature, for example Al and/or an intermetallic phase, in an amount detrimental to application of a metallic replacement coating and/or repair of the article. The method comprises removing the coating outer portion to expose a surface of the diffusion zone. The substrate and the diffusion zone are heated at a temperature and for a time sufficient to diffuse and/or dissolve at least a portion of the at least one feature in the exposed surface and in a portion of the diffusion zone beneath the exposed surface to a level below the detrimental amount. This provides a replacement surface portion integral with diffusion zone. Then a metallic replacement coating outer portion is applied to the replacement surface portion. Provided is a coated article comprising a substrate and a metallic environmental resistant coating bonded with the substrate. The coating comprises an inner modified portion of the substrate integral with the substrate, an outer diffusion zone integral with the inner portion, and a metallic environmental resistant coating outer portion integral with the outer diffusion zone. In some forms, the coated article includes a thermal barrier coating over the metallic coating outer portion.

    Methods and apparatus for extending gas turbine engine airfoils useful life
    6.
    发明授权
    Methods and apparatus for extending gas turbine engine airfoils useful life 有权
    扩大燃气轮机发动机翼型的使用寿命的方法和装置

    公开(公告)号:US06932570B2

    公开(公告)日:2005-08-23

    申请号:US10155452

    申请日:2002-05-23

    摘要: A method enables a gas turbine engine blade to be manufactured to include an airfoil, a platform, a shank, and a dovetail. The platform extends between the airfoil and the shank, the shank extends between the dovetail and the platform, and the dovetail includes at least one tang for securing the blade within the engine. The method comprises defining a cooling cavity in the blade that extends through the airfoil, the platform, the shank, and the dovetail, such that a portion of the cavity defined within the dovetail includes a root passage portion having a first width, and a transition portion extending between the root passage and the portion of the cavity defined within the shank, and wherein the portion of the cavity defined within the shank has a second width that is larger than the root passage first width. The blade is then coated with an environmental resistive coating.

    摘要翻译: 一种方法能够使燃气涡轮发动机叶片制造成包括翼型件,平台,柄和燕尾榫。 平台在翼型件和柄之间延伸,柄部在燕尾榫和平台之间延伸,并且燕尾榫包括用于将叶片固定在发动机内的至少一个柄脚。 该方法包括限定叶片中的冷却空腔,其延伸穿过翼型件,平台,柄部和燕尾榫,使得限定在燕尾榫内部的空腔的一部分包括具有第一宽度的根部通道部分和过渡部分 所述部分在所述根部通道和限定在所述柄部内的所述腔的部分之间延伸,并且其中限定在所述柄内的所述腔的所述部分具有大于所述根部通道第一宽度的第二宽度。 然后用环保电阻涂层涂覆刀片。

    Coating article and method for repairing a coated surface
    7.
    发明授权
    Coating article and method for repairing a coated surface 有权
    涂层制品和修补涂层表面的方法

    公开(公告)号:US06605364B1

    公开(公告)日:2003-08-12

    申请号:US09618576

    申请日:2000-07-18

    IPC分类号: B32B1504

    摘要: A method is provided for repairing a surface portion of an article including a metallic environmental resistant coating on a substrate. The coating includes a coating outer portion bonded with the substrate through a diffusion zone that includes at least one feature, for example Al and/or an intermetallic phase, in an amount detrimental to application of a metallic replacement coating and/or repair of the article. The method comprises removing the coating outer portion to expose a surface of the diffusion zone. The substrate and the diffusion zone are heated at a temperature and for a time sufficient to diffuse and/or dissolve at least a portion of the at least one feature in the exposed surface and in a portion of the diffusion zone beneath the exposed surface to a level below the detrimental amount. This provides a replacement surface portion integral with diffusion zone. Then a metallic replacement coating outer portion is applied to the replacement surface portion. Provided is a coated article comprising a substrate and a metallic environmental resistant coating bonded with the substrate. The coating comprises an inner modified portion of the substrate integral with the substrate, an outer diffusion zone integral with the inner portion, and a metallic environmental resistant coating outer portion integral with the outer diffusion zone. In some forms, the coated article includes a thermal barrier coating over the metallic coating outer portion.

    摘要翻译: 提供一种用于修复在基材上包含金属耐环境涂层的制品的表面部分的方法。 涂层包括通过扩散区与基底结合的涂层外部部分,该扩散区包括至少一个特征,例如Al和/或金属间相,其量不利于施加金属替代涂层和/或修复物品 。 该方法包括去除涂层外部部分以暴露扩散区域的表面。 衬底和扩散区在足以在暴露表面和暴露表面下方的扩散区的一部分中的至少一部分的至少一部分扩散和/或溶解的温度下加热至 低于有害量。 这提供了与扩散区一体的替换表面部分。 然后将金属替换涂层外部施加到更换表面部分。 本发明提供一种包含基材和与该基材结合的耐金属金属涂层的涂布制品。 所述涂层包括与所述基底一体的所述基底的内部改性部分,与所述内部一体的外部扩散区,以及与所述外部扩散区一体的金属防环境涂层外部。 在一些形式中,涂覆制品在金属涂层外部部分上包括热障涂层。

    Method of removing ceramic coatings
    8.
    发明授权
    Method of removing ceramic coatings 有权
    去除陶瓷涂层的方法

    公开(公告)号:US06379749B2

    公开(公告)日:2002-04-30

    申请号:US09730373

    申请日:2000-12-05

    IPC分类号: B05D310

    CPC分类号: C23G1/10 B23P2700/06 C23C4/02

    摘要: A method of removing a ceramic coating (18), and particularly zirconia-containing thermal barrier coating (TBC) materials such as yttria-stabilized zirconia (YSZ), that has been either intentionally or unintentionally deposited on the surface of a component (10). The method entails subjecting the ceramic coating (18) to an aqueous solution containing an acid fluoride salt, such as ammonium bifluoride (NH4HF2) or sodium bifluoride (NaHF2), and a corrosion inhibitor. The method is capable of completely removing the ceramic coating (18) without removing or damaging the underlying substrate material, which may include a metallic bond coat (16).

    摘要翻译: 已经有意或无意沉积在组件(10)的表面上的去除陶瓷涂层(18),特别是含氧化锆的热障涂层(TBC)材料如氧化钇稳定的氧化锆(YSZ)的方法, 。 该方法需要使陶瓷涂层(18)经受含氟化氢盐如氟化氢铵(NH 4 HF 2)或氟化氢钠(NaHF 2)的水溶液和腐蚀抑制剂。 该方法能够完全去除陶瓷涂层(18),而不会移除或损坏可能包括金属粘结涂层(16)的下面的基底材料。

    TURBINE ENGINE COMPONENTS WITH ENVIRONMENTAL PROTECTION FOR INTERIOR PASSAGES
    9.
    发明申请
    TURBINE ENGINE COMPONENTS WITH ENVIRONMENTAL PROTECTION FOR INTERIOR PASSAGES 有权
    具有内部通道环境保护的涡轮发动机部件

    公开(公告)号:US20090162209A1

    公开(公告)日:2009-06-25

    申请号:US11959595

    申请日:2007-12-19

    IPC分类号: F01D5/18 F04D29/58

    摘要: A gas turbine blade comprises a base metal, a platform, an airfoil extending upwardly from the platform, a shank extending downwardly from the platform. The shank has an exterior wall and an internal passage, and the airfoil has a cooling flow channel inside the airfoil for flowing a cooling flow therethrough. The blade has a first chromide coating contacting the base metal of at least a portion of an interior surface of the shank and interdiffused therewith, wherein the first chromide coating does not have an aluminide coating deposited over it. The blade has a second chromide coating contacting the base metal of at least a portion of an interior surface of the airfoil and interdiffused therewith. A method for preparing a gas turbine blade comprises the steps of applying chromide coatings, sealing the interior passages of the shank and airfoil and applying an aluminide or platinum aluminide coating and an optional ceramic layer on the airfoil.

    摘要翻译: 燃气轮机叶片包括贱金属,平台,从平台向上延伸的翼型件,从平台向下延伸的柄部。 柄具有外壁和内部通道,并且翼型件具有用于使冷却流通过其中的翼型件内的冷却流动通道。 刀片具有与柄的内表面的至少一部分的贱金属接触并与之相互扩散的第一铬化物涂层,其中第一铬化物涂层不具有沉积在其上的铝化物涂层。 叶片具有与翼型件的内表面的至少一部分的基底金属接触并与其相互扩散的第二铬化物涂层。 制备燃气轮机叶片的方法包括以下步骤:施加铬酸盐涂层,密封柄和翼型件的内部通道,并在翼型件上施加铝化物或铂铝化物涂层和可选的陶瓷层。

    Aluminide coating of gas turbine engine blade
    10.
    发明授权
    Aluminide coating of gas turbine engine blade 失效
    燃气轮机发动机叶片的铝酸盐涂层

    公开(公告)号:US07026011B2

    公开(公告)日:2006-04-11

    申请号:US10357972

    申请日:2003-02-04

    IPC分类号: C23C16/08

    摘要: A method for applying an aluminide coating on a gas turbine engine blade having an external surface and an internal cooling cavity having an internal surface that is connected to the external surface by cooling holes. 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 blade to be coated; providing an aluminide coating gas in the loaded coating chamber; maintaining the loaded coating chamber comprising the aluminide coating gas at a specified temperature and time to deposit an aluminide coating on the external surface of the blade; and then flowing an inert carrier gas into the loaded coating chamber comprising the aluminide coating gas at a specified gas flow rate and time to move the aluminide coating gas through the cooling holes and internal cooling cavity and deposit an aluminide coating on the internal surface of the blade.

    摘要翻译: 一种在具有外表面的燃气涡轮发动机叶片上施加铝化物涂层的方法和具有通过冷却孔连接到外表面的内表面的内部冷却腔。 该方法在具有中空的内部涂覆室的蒸气涂覆容器中进行,并且包括以下步骤:将涂覆室与待涂覆的刀片装载; 在装载的涂覆室中提供铝化物涂覆气体; 将包含铝化物涂层气体的装载涂层室保持在规定温度和时间,以将铝化物涂层沉积在叶片的外表面上; 然后使惰性载体气体以特定的气体流速和时间流入包含铝化物涂层气体的装载的涂覆室中,以移动铝化物涂层气体通过冷却孔和内部冷却腔,并将铝化物涂层沉积在 刀。