Method for HVOF or LPPS restoration coating repair of a nickel-base superalloy article
    1.
    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。

    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。