METHOD OF DEPOSITION OF METALLIC COATINGS USING ATOMIZED SPRAY
    1.
    发明申请
    METHOD OF DEPOSITION OF METALLIC COATINGS USING ATOMIZED SPRAY 有权
    使用原位喷涂沉积金属涂层的方法

    公开(公告)号:US20110081480A1

    公开(公告)日:2011-04-07

    申请号:US12574809

    申请日:2009-10-07

    IPC分类号: B05D1/12 B05D3/02 B05D3/00

    摘要: A method of coating a metal substrate such as the components in second and third stages of gas turbine engines in order to increase the oxidation and corrosion resistance of the metal substrate under high temperature operating conditions, the method including the steps of forming a powdered mixture of a high-melt superalloy or MCrAlY component, where M comprises Fe, Ni and/or Co, and a low-melt component containing about 2-5 wt. % silicon, boron or hafnium, applying the powdered mixture to the surface of the metal substrate at room temperature using an atomized spray to form a uniform surface coating, and then heating the coated substrate surface under vacuum conditions to a temperature in the range of about 1900° F. to 2275° F. to obtain a uniform coating composition providing oxidation resistance to the underlying substrate.

    摘要翻译: 为了提高金属基板在高温运转条件下的耐氧化性和耐腐蚀性,可以采用如燃气轮机的第二,第三级中的成分涂敷金属基材的方法,该方法包括以下步骤: 高熔点超合金或MCrAlY组分,其中M包含Fe,Ni和/或Co,以及含有约2-5wt。 %硅,硼或铪,使用雾化喷雾将粉末状混合物在室温下施加到金属基材的表面,以形成均匀的表面涂层,然后在真空条件下将涂覆的基材表面加热至约 1900°F至2275°F,以获得对底层基底提供抗氧化性的均匀涂层组合物。