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    ARTICLE FOR USE IN HIGH STRESS ENVIRONMENTS HAVING MULTIPLE GRAIN STRUCTURES
    11.
    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

    Applicant: General Electric Company

    Inventor： Yan Cui ,  Ganjiang Feng ,  Srikanth Chandrudu Kottilingam ,  Matthew Joseph Laylock ,  Dechao Lin

    IPC: F01D5/28 ,  B22D21/02 ,  C22C19/05 ,  B22D27/04

    CPC classification number: F01D5/28 ,  B22D21/025 ,  B22D27/045 ,  B22D30/00 ,  C22C19/057 ,  F01D5/12 ,  F01D5/14 ,  F01D9/02 ,  F05D2230/21 ,  Y02T50/671

    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。

    METHODS OF FORMING DESIRED GEOMETRY ON SUPERALLOY PART USING POWDER MIXTURE OF LOW AND HIGH MELT TEMPERATURE SUPERALLOYS
    13.
    发明申请
    METHODS OF FORMING DESIRED GEOMETRY ON SUPERALLOY PART USING POWDER MIXTURE OF LOW AND HIGH MELT TEMPERATURE SUPERALLOYS 有权

    公开(公告)号：US20220372627A1

    公开(公告)日：2022-11-24

    申请号：US17816472

    申请日：2022-08-01

    Applicant: General Electric Company

    Inventor： Yan Cui ,  Matthew Joseph Laylock ,  Brian Lee Tollison

    IPC: C23C24/04 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y80/00 ,  C23C24/10

    Abstract: Methods of forming a desired geometry at a location on a superalloy part are disclosed. The method may include directing particles of a powder mixture including a low melt temperature superalloy powder and a high melt temperature superalloy powder to the location on the superalloy part at a velocity sufficient to cause the superalloy powders to deform and to form a mechanical bond but not a metallurgical bond to the superalloy part. The directing of particles continues until the desired geometry is formed. Heat is applied to the powder mixture on the repair location. The heat causes the low melt temperature superalloy powder to melt, creating the metallurgical bonding at the location. Another method uses the same directing to form a preform for repairing the location on the part. The low melt temperature superalloy powder melts at less than 1287° C., and the high melt temperature superalloy powder melts at greater than 1287° C.

    SUPERALLOY PART AND METHOD OF PROCESSING
    17.
    发明申请
    SUPERALLOY PART AND METHOD OF PROCESSING 有权

    公开(公告)号：US20210205910A1

    公开(公告)日：2021-07-08

    申请号：US16737469

    申请日：2020-01-08

    Applicant: General Electric Company

    Inventor： Yan Cui ,  Michael Douglas Arnett ,  Matthew Joseph Laylock ,  Brian Lee Tollison ,  Jeffrey Michael Breznak

    IPC: B23K1/00 ,  C22C19/05

    Abstract: A method for repairing a part and the resulting is disclosed. The method includes positioning a plug having an inner braze element coupled thereto into a cavity defined by an internal surface of a component. The cavity has a circular cross-section at the external surface of the component. The plug completely fills the circular cross-section and the inner braze element is within the cavity. A braze paste is positioned at least partially around the plug at the external surface. The component is positioned such that the inner braze element is above the plug. The component is subjected to a thermal cycle to melt the inner braze element around the plug, completely sealing the cavity by forming a metallurgical bond with the plug and the internal surface of the component. During the thermal cycle the braze paste is melted to form a metallurgical bond with the plug and external surface.

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