ARTICLE FOR USE IN HIGH STRESS ENVIRONMENTS HAVING MULTIPLE GRAIN STRUCTURES
    34.
    发明申请
    ARTICLE FOR USE IN HIGH STRESS ENVIRONMENTS HAVING MULTIPLE GRAIN STRUCTURES 审中-公开
    用于具有多种颗粒结构的高应力环境中的文章

    公开(公告)号:US20150275677A1

    公开(公告)日:2015-10-01

    申请号:US14669008

    申请日:2015-03-26

    Abstract: A method of forming an article can comprise heating a metal to form a molten metal having a metal temperature; heating a mold to a mold temperature greater than or equal to the metal temperature; introducing the molten metal to the mold; cooling a first portion of the molten metal while maintaining a second portion of the molten metal at the metal temperature, wherein the first portion has a first side and a second side, wherein the second side is opposite the first side and adjacent to the second portion, and wherein the cooling comprises progressively cooling the first portion from the first side to the second side such that a solidification interface progresses from the first side to the second side; and cooling the remainder of the molten metal from multiple directions after the first portion is cooled to less than or equal to a crystallization temperature.

    Abstract translation: 形成制品的方法可以包括加热金属以形成具有金属温度的熔融金属; 将模具加热到大于或等于金属温度的模具温度; 将熔融金属引入模具中; 冷却熔融金属的第一部分,同时保持熔融金属的第二部分处于金属温度,其中第一部分具有第一侧和第二侧,其中第二侧与第一侧相对并且与第二部分相邻 并且其中所述冷却包括从所述第一侧向所述第二侧逐渐冷却所述第一部分,使得凝固界面从所述第一侧向所述第二侧延伸; 在将第一部分冷却至小于或等于结晶温度之后,从多个方向冷却剩余的熔融金属。

    Weld-brazing techniques
    37.
    发明授权

    公开(公告)号:US11517969B2

    公开(公告)日:2022-12-06

    申请号:US16256340

    申请日:2019-01-24

    Abstract: A system includes a gas turbine component having a recessed portion with a recessed surface in a hard-to-weld (HTW) material. The system includes a plate disposed over the recessed portion. The plate has an easy-to-weld (ETW) material. The plate has an outer surface and an inner surface, and the inner surface faces the recessed portion. The system includes a braze material disposed within the recessed portion between the recessed surface and the inner surface of the plate. The braze material is configured to bond the recessed surface of the recessed portion with the inner surface of the plate when the braze material is heated to a brazing temperature. The system includes a filler material disposed on the outer surface of the plate disposed over the recessed portion. Application of the filler material to the outer surface of the plate is configured to heat the braze material to the brazing temperature.

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