Coating article and method for repairing a coated surface
    11.
    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。