Oxidation resistant and/or abrasion resistant squealer tip and method for casting same
    1.
    发明授权
    Oxidation resistant and/or abrasion resistant squealer tip and method for casting same 失效
    耐氧化和/或耐磨的尖叫尖端及其铸造方法

    公开(公告)号:US06616410B2

    公开(公告)日:2003-09-09

    申请号:US10041072

    申请日:2001-11-01

    IPC分类号: F01D528

    摘要: The present invention provides for a squealer tip to include some proportion of a highly oxidation-resistant material, and a method for casting same, such that if any environmental coating were removed, the tip would retain some increased level of environmental resistance. The oxidation-resistant material optionally may also be a high abrasion resistance material, such that recession of the tip due to rubbing against a stator would be reduced. In a preferred embodiment, an abrasion-resistant and/or oxidation-resistant material is placed and suitably anchored into the tip region of a wax precursor used to cast a turbine airfoil. During the casting operation, the abrasion-resistant and/or oxidation-resistant material is not completely melted. As the alloy used to form the majority of the turbine blade solidifies, the abrasion and/or oxidation resistant material is incorporated into the turbine airfoil by the solidification of the alloy around it.

    摘要翻译: 本发明提供了一种包括一些比例的高度抗氧化材料的尖叫尖端及其铸造方法,使得如果任何环境涂层被去除,则尖端将保持一些增加的耐环境性水平。 耐氧化材料任选地也可以是高耐磨性材料,从而减少由于摩擦定子而引起的尖端的凹陷。 在优选的实施方案中,将耐磨损和/或抗氧化材料放置并适当地锚定到用于铸造涡轮机翼的蜡前体的尖端区域中。 在铸造操作期间,耐磨损和/或抗氧化材料未完全熔化。 由于用于形成大部分涡轮机叶片的合金固化,所以耐磨损和/或抗氧化的材料通过其周围的合金的固化而结合到涡轮机翼型件中。

    METHOD FOR HVOF OR LPPS RESTORATION COATING REPAIR OF A NICKEL-BASE SUPERALLOY ARTICLE
    2.
    发明申请
    METHOD FOR HVOF OR LPPS RESTORATION COATING REPAIR OF A NICKEL-BASE SUPERALLOY ARTICLE 有权
    镍基复合材料的HVOF或LPPS复原涂层修复方法

    公开(公告)号:US20100136247A1

    公开(公告)日:2010-06-03

    申请号:US11845352

    申请日:2007-08-27

    IPC分类号: B05D1/08 B05D1/32

    摘要: A method for repairing a nickel-base superalloy article, such as a gas turbine stationary flowpath shroud having flowpath cooling holes therein that has previously been in service, includes the steps of providing the nickel-base superalloy article that has previously been in service; and applying a restoration to a surface of the article. The restoration is applied by the steps of providing a restoration nickel-base alloy, wherein the restoration nickel-base alloy preferably has no more than about 15 weight percent chromium and no more than about 0.01 percent yttrium, thereafter applying a restoration coating of the restoration nickel-base alloy to the surface of the article by a hyper-velocity oxyfuel metal spray process or a low-pressure plasma spray process, and thereafter heating the article with the restoration coating applied to the surface thereof to a sufficiently high temperature to diffusion bond the restoration coating to the surface of the article. The article is then returned to service.

    摘要翻译: 镍基超级合金制品的修复方法,例如其中已经使用的具有流路冷却孔的燃气轮机固定流路护罩,包括提供先前已经使用的镍基超合金制品的步骤; 以及将修复物应用于所述制品的表面。 通过提供恢复镍基合金的步骤来应用恢复,其中恢复镍基合金优选具有不超过约15重量%的铬和不超过约0.01%的钇,然后应用恢复镍基合金的恢复涂层 镍基合金通过超速氧化物金属喷涂法或低压等离子体喷涂法制成制品的表面,然后将具有施加到其表面的恢复涂层的制品加热至足够高的温度以扩散粘结 将修复物涂覆到制品的表面。 该文章然后返回服务。

    Method for HVOF or LPPS restoration coating repair of a nickel-base superalloy article
    4.
    发明授权
    Method for HVOF or LPPS restoration coating repair of a nickel-base superalloy article 有权
    镍基超级合金制品的HVOF或LPPS修复涂层修复方法

    公开(公告)号:US07811396B2

    公开(公告)日:2010-10-12

    申请号:US11845352

    申请日:2007-08-27

    IPC分类号: C23C10/28

    摘要: A method for repairing a nickel-base superalloy article, such as a gas turbine stationary flowpath shroud having flowpath cooling holes therein that has previously been in service, includes the steps of providing the nickel-base superalloy article that has previously been in service; and applying a restoration to a surface of the article. The restoration is applied by the steps of providing a restoration nickel-base alloy, wherein the restoration nickel-base alloy preferably has no more than about 15 weight percent chromium and no more than about 0.01 percent yttrium, thereafter applying a restoration coating of the restoration nickel-base alloy to the surface of the article by a hyper-velocity oxyfuel metal spray process or a low-pressure plasma spray process, and thereafter heating the article with the restoration coating applied to the surface thereof to a sufficiently high temperature to diffusion bond the restoration coating to the surface of the article. The article is then returned to service.

    摘要翻译: 镍基超级合金制品的修复方法,例如其中已经使用的具有流路冷却孔的燃气轮机固定流路护罩,包括提供先前已经使用的镍基超合金制品的步骤; 以及将修复物应用于所述制品的表面。 通过提供恢复镍基合金的步骤来应用恢复,其中恢复镍基合金优选具有不超过约15重量%的铬和不超过约0.01%的钇,然后应用恢复镍基合金的恢复涂层 镍基合金通过超速氧化物金属喷涂法或低压等离子体喷涂法制成制品的表面,然后将具有施加到其表面的恢复涂层的制品加热至足够高的温度以扩散粘结 将修复物涂覆到制品的表面。 该文章然后返回服务。

    Diffusion barrier coatings, and related articles and processes
    9.
    发明授权
    Diffusion barrier coatings, and related articles and processes 失效
    扩散阻隔涂层及相关制品和工艺

    公开(公告)号:US06746782B2

    公开(公告)日:2004-06-08

    申请号:US09681821

    申请日:2001-06-11

    IPC分类号: B32B1504

    摘要: A barrier coating is disclosed, containing about 15 atom % to about 95 atom % chromium; and about 5 atom % to about 60 atom % of at least one of rhenium, tungsten, and ruthenium. Nickel, cobalt, iron, and aluminum may also be present. The barrier coating can be disposed between a metal substrate (e.g., a superalloy) and an oxidation-resistant coating, preventing the substantial diffusion of various elements at elevated service temperatures. A ceramic overcoat (e.g., based on zirconia) can be applied over the oxidation-resistant coating. Related methods for applying protective coatings to metal substrates are also described.

    摘要翻译: 公开了一种阻挡涂层,其包含约15原子%至约95原子%的铬; 和约5原子%至约60原子%的铼,钨和钌中的至少一种。 镍,钴,铁和铝也可以存在。 阻挡涂层可以设置在金属基底(例如超级合金)和耐氧化涂层之间,防止在升高的使用温度下各种元素的实质扩散。 可以在耐氧化涂层上施加陶瓷外涂层(例如,基于氧化锆)。 还描述了将保护涂层应用于金属基底的相关方法。

    Hybrid high temperature articles and method of making
    10.
    发明授权
    Hybrid high temperature articles and method of making 有权
    混合高温物品及其制作方法

    公开(公告)号:US06726444B2

    公开(公告)日:2004-04-27

    申请号:US10063091

    申请日:2002-03-18

    IPC分类号: F01D528

    摘要: An article for use in a hot gas path of a gas turbine assembly, a metallic skin for such an article, and a method for making such an article are presented with, for example, the article comprising a spar, the spar providing mechanical support for the article and comprising a cooling fluid delivery system, a top end, and a bottom end; a standoff structure attached to the spar, the standoff structure comprising a plurality of spacing elements in a spaced-apart relation to each other, the spacing elements having first ends adjacent to the spar and second ends opposite to the first ends; a skin conformally surrounding the spar and the standoff structure, the skin comprising a top end and a bottom end, wherein the standoff structure separates the spar and the skin, wherein the plurality of spacing elements is disposed with an inner surface of the skin adjacent to the second ends of the spacing elements to form a plurality of plena between the spar and the skin, the plena in fluid communication with the cooling fluid delivery system, the skin comprising at least one metal selected from the group consisting of Rh, Pd, and Pt; and a base connecting the bottom end of the spar and the bottom end of the skin.

    摘要翻译: 用于燃气轮机组件的热气体路径的物品,这种物品的金属表皮以及制造这种物品的方法具有例如包括翼梁的物品,所述翼梁提供机械支撑 所述制品包括冷却流体输送系统,顶端和底端; 所述隔离结构附接到所述翼梁,所述间隔结构包括彼此间隔开的关系的多个间隔元件,所述间隔元件具有与所述翼梁相邻的第一端和与所述第一端相对的第二端; 皮肤保形地围绕所述翼梁和所述支架结构,所述皮肤包括顶端和底端,其中所述支座结构分离所述翼梁和所述皮肤,其中所述多个间隔元件设置有皮肤的内表面, 所述间隔元件的第二端在所述翼梁和皮肤之间形成多个斑块,所述斑块与所述冷却流体输送系统流体连通,所述皮肤包含至少一种选自Rh,Pd和 铂 以及连接翼梁的底端和皮肤底端的底座。