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    Airfoil coupon attachment
    22.
    发明授权
    Airfoil coupon attachment 有权

    公开(公告)号：US11203938B2

    公开(公告)日：2021-12-21

    申请号：US16184111

    申请日：2018-11-08

    Applicant: General Electric Company

    Inventor： Srikanth Chandrudu Kottilingam ,  Jon Conrad Schaeffer ,  Brian Lee Tollison

    IPC: F01D5/18 ,  B23P15/04 ,  F01D5/14

    Abstract: A nozzle or blade for a turbomachine includes an airfoil body including at least one first coolant passage, and an edge opening in a leading edge or a trailing edge of the airfoil body. The edge opening has an edge coupon retention member seat in or on an inner surface of the airfoil body. An edge coupon has a shape at least partially configured for coupling to the edge opening in the airfoil body. The edge coupon includes an edge coupon body, at least one second coolant passage in the edge coupon body configured for fluid communication with the at least one first coolant passage in the airfoil body, and a retention member extending from the edge coupon body for coupling to the edge coupon retention member seat in the airfoil body.

    TURBOMACHINE BLADE TIP ATTACHMENT
    26.
    发明申请
    TURBOMACHINE BLADE TIP ATTACHMENT 审中-公开

    公开(公告)号：US20200149403A1

    公开(公告)日：2020-05-14

    申请号：US16184052

    申请日：2018-11-08

    Applicant: General Electric Company

    Inventor： Srikanth Chandrudu Kottilingam ,  Jon Conrad Schaeffer ,  Brian Lee Tollison

    IPC: F01D5/14 ,  F01D5/18 ,  B33Y80/00 ,  B23K1/00

    Abstract: A blade for a turbomachine, a tip for a blade of a turbomachine and a related method are disclosed. The blade may include a tip body having a shape at least partially configured for coupling to an airfoil body of the blade; at least one coolant passage in the tip body configured for fluid communication with at least one coolant passage in the airfoil body; and a retention member extending from the tip body for coupling to a tip retention member seat in the airfoil body. The tip can be replaced, allowing for changes in the coolant passages in the tip of a blade.

    Cast nickel-base alloys including iron
    27.
    发明授权
    Cast nickel-base alloys including iron 有权

    公开(公告)号：US10266926B2

    公开(公告)日：2019-04-23

    申请号：US13868481

    申请日：2013-04-23

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Ganjiang Feng ,  Jon Conrad Schaeffer ,  Michael Douglas Arnett

    IPC: C22C19/05 ,  C22C30/00

    Abstract: A cast nickel-base superalloy that includes iron added substitutionally for nickel. The cast nickel base superalloy comprises, in weight percent about 1-6% iron, about 7.5-19.1% cobalt, about 7-22.5% chromium, about 1.2-6.2% aluminum, optionally up to about 5% titanium, optionally up to about 6.5% tantalum, optionally up to about 1% Nb, about 2-6% W, optionally up to about 3% Re, optionally up to about 4% Mo, about 0.05-0.18% C, optionally up to about 0.15% Hf, about 0.004-0.015 B, optionally up to about 0.1% Zr, and the balance Ni and incidental impurities. The superalloy is characterized by a γ′ solvus temperature that is within 5% of the γ′ solvus temperature of the superalloy that does not include 1-6% Fe and a mole fraction of γ′ that is within 15% of the mole fraction of the superalloy that does not include 1-6% Fe.

    Modified articles, coated articles, and modified alloys
    28.
    发明授权
    Modified articles, coated articles, and modified alloys 有权

    公开(公告)号：US10253396B2

    公开(公告)日：2019-04-09

    申请号：US15255383

    申请日：2016-09-02

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Jon Conrad Schaeffer ,  Shan Liu ,  Martin M. Morra ,  Michael Douglas Arnett

    IPC: C22C19/05 ,  F01D5/28 ,  F01D9/04 ,  F01D25/00 ,  C22C19/03 ,  C22C30/00 ,  C22C45/00 ,  C22C45/04 ,  C22F1/10

    Abstract: A modified alloy is disclosed including a base alloy composition and an additive gamma prime antioxidant. The base alloy composition includes a concentration of a gamma prime antioxidant less than an effective concentration of the gamma prime antioxidant. The additive gamma prime antioxidant is intermixed with the base alloy composition to form the modified alloy, preferentially segregating to a gamma prime phase of the modified alloy and increasing the concentration of the gamma prime antioxidant to be at least the effective concentration of the gamma prime antioxidant. The effective concentration imparts reduced oxidation susceptibility of the gamma prime phase. An article is disclosed including the modified alloy. A coated article is disclosed including a coating disposed on a surface of an article having the base alloy composition. The coated article includes a reduced stress accelerated gamma prime oxidation static crack growth susceptibility in comparison with the base alloy composition.

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