Diffusion barrier layer
    1.
    发明授权
    Diffusion barrier layer 失效
    扩散阻挡层

    公开(公告)号:US06306524B1

    公开(公告)日:2001-10-23

    申请号:US09275096

    申请日:1999-03-24

    IPC分类号: B32B1500

    摘要: A coating for use on a superalloy substrate comprising a diffusion barrier as an intermediate layer overlying the substrate and underlying a protective coating having a high aluminum content. The diffusion barrier layer is characterized by having low solubility for aluminum from either the substrate or the protective coating. Further, the diffusion barrier layer has low interdiffusivity for elements from the substrate and the coating, a minimal impact on the mechanical properties of the article which is coated, a minimal thermal expansion mismatch with both the substrate and the high aluminum content protective coating, and can be applied readily using existing coating application techniques. The diffusion barrier is preferably a single phase alloy or intermetallic compound.

    摘要翻译: 一种用于超级合金基底上的涂层,包括扩散阻挡层作为覆盖在基底上的中间层,并且具有高铝含量的保护涂层。 扩散阻挡层的特征在于从基底或保护涂层对铝的溶解度低。 此外,扩散阻挡层对于来自基底和涂层的元件具有低的相互扩散性,对被涂覆的制品的机械性能的最小影响与基底和高铝含量保护涂层的最小热膨胀失配,以及 可以使用现有的涂布应用技术容易地应用。 扩散阻挡层优选为单相合金或金属间化合物。

    Hybrid high temperature articles and method of making
    5.
    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。