公开(公告)号：US09855599B2

公开(公告)日：2018-01-02

申请号：US14941627

申请日：2015-11-15

Applicant: GENERAL ELECTRIC COMPANY

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

IPC: B22D19/16 ,  B22D27/04 ,  F01D5/28 ,  F01D9/02 ,  F01D9/04

CPC classification number: B22D27/045 ,  B22D19/16 ,  F01D5/28 ,  F01D9/02 ,  F01D9/041 ,  F05D2220/30 ,  F05D2230/21 ,  F05D2300/173 ,  F05D2300/175 ,  F05D2300/606 ,  F05D2300/609

Abstract: Casting methods and articles are disclosed wherein a molten first material is introduced into a mold which distributes the first material to form a first region of the article where it is subjected to a first condition suitable for growing a first grain structure, forming the first region of the article. A molten second material, compositionally distinct from the first material, is introduced into the mold to form a second region of the article. A hybridized material is formed by intermixing a first portion of the second material with the second portion of the first material. A second portion of the second material is subjected to a second condition suitable for growing a second grain structure distinct from the first grain structure, forming the second region of the article. The first region and the second region are integrally formed as a single, continuous article with a hybridized region formed between.

公开(公告)号：US20170089216A1

公开(公告)日：2017-03-30

申请号：US14865015

申请日：2015-09-25

Applicant: General Electric Company

Inventor： Yan Cui ,  Ganjiang Feng ,  Srikanth Chandrudu Kottilingam ,  Dechao Lin ,  Brian Lee Tollison

IPC: F01D21/00 ,  F01D5/12

CPC classification number: F01D21/003 ,  F01D5/12 ,  F01D5/147 ,  F01D17/02 ,  F05D2260/80 ,  Y02T50/673

Abstract: Embodiments of the present disclosure provide turbine buckets, turbomachinery, and related methods for identifying bucket deformation. A turbine bucket according to embodiments of the present disclosure can include an airfoil extending radially from a base, relative to a rotor axis of a turbomachine; and a magnetized material coupled to the airfoil proximal to a radially outer end thereof. To identify bucket deformation, a magnetic sensor can measure a magnetic field strength of the magnetized material, and a computing device in communication with the magnetic sensor can identify the turbine bucket as being one of deformed and non-deformed based on the magnetic field strength of the magnetized material.

公开(公告)号：US20160115799A1

公开(公告)日：2016-04-28

申请号：US14522824

申请日：2014-10-24

Applicant: General Electric Company

Inventor： Dechao Lin ,  Wei Chen ,  Xiaoxue Diao ,  Paul Stephen Dimascio ,  Srikanth Chandrudu Kottilingam ,  Brian Lee Tollison

IPC: F01D9/02 ,  F23R3/00 ,  B23K9/16 ,  F23R3/02

CPC classification number: B23K9/16 ,  B23K9/0026 ,  B23K9/046 ,  B23K9/23 ,  B23K2101/001 ,  B23K2101/045 ,  F01D5/186 ,  F05D2230/232 ,  F05D2230/30 ,  F05D2240/127 ,  F05D2260/2212 ,  F23R3/002 ,  F23R3/005 ,  F23R2900/00018 ,  F23R2900/03045 ,  Y02T50/676

Abstract: A method of forming a plurality of turbulators on a turbomachine surface includes depositing a portion of material on the turbomachine surface forming a first portion of the plurality of turbulators, adding additional material to the first portion, and establishing a desired dimension of the plurality of turbulators.

Abstract translation: 在涡轮机表面上形成多个湍流器的方法包括将一部分材料沉积在涡轮机表面上，形成多个湍流器的第一部分，向第一部分添加额外的材料，以及建立多个湍流器的期望尺寸 。

公开(公告)号：US20150375321A1

公开(公告)日：2015-12-31

申请号：US14318934

申请日：2014-06-30

Applicant: General Electric Company

Inventor： Yan Cui ,  Srikanth Chandrudu Kottilingam ,  Jason Robert Parolini ,  Dechao Lin

IPC: B23K1/00 ,  B32B5/02 ,  B23K1/19

CPC classification number: B23K1/0008 ,  B22F7/062 ,  B23K1/0018 ,  B23K1/19 ,  B23K35/0238 ,  B23K2101/001 ,  B23K2103/166 ,  B32B5/02 ,  B32B2262/106 ,  B32B2264/105 ,  B32B2313/04 ,  B32B2603/00 ,  B32B2605/00 ,  C22C47/06

Abstract: Methods of providing a fiber reinforced braze include providing a substrate, disposing at least a first fiber reinforcement layer on the substrate, wherein the at least first fiber reinforcement layer comprises a fiber material, disposing at least a first braze layer on the at least first fiber reinforcement layer, wherein a melt temperature of the braze layer is lower than a melt temperature of the fiber material, and heating the at least first fiber reinforcement layer and the at least first braze layer to bond the fiber reinforced braze to the substrate.

Abstract translation: 提供纤维增强钎焊的方法包括提供基底，在基底上设置至少第一纤维加强层，其中至少第一纤维增强层包括纤维材料，在至少第一纤维上设置至少第一钎焊层 加强层，其中所述钎焊层的熔融温度低于所述纤维材料的熔融温度，以及加热所述至少第一纤维增强层和所述至少第一钎焊层以将所述纤维增强的钎焊粘合到所述基材。

公开(公告)号：US20150129644A1

公开(公告)日：2015-05-14

申请号：US14602865

申请日：2015-01-22

Applicant: General Electric Company

Inventor： Yan Cui ,  Srikanth Chandrudu Kottilingam ,  Dechao Lin ,  Brian Lee Tollison

IPC: B23K35/30 ,  B23K31/02 ,  B23K35/02

CPC classification number: B23K35/304 ,  B23K31/02 ,  B23K35/0261 ,  B23K35/3033 ,  C22C19/051 ,  C22C19/056 ,  C22C19/057

Abstract: A metal chemistry includes an amount of chromium weight of between about 9.0% and about 16% by weight, an amount of cobalt of between about 7.0% and about 14% by weight, an amount of molybdenum of between about 10% and about 20% by weight, an amount of iron of between about 1.0% and about 5.0% by weight, an amount of aluminum of between about 0.05% and about 0.75% by weight, an amount of titanium of between about 0.5% and about 2.0% by weight, an amount of manganese not to exceed about 0.8% by weight, an amount of carbon of between about 0.02% and about 0.10% by weight, an amount of a titanium+aluminum alloy of between about 0.55% and about 2.75% by weight, and an amount of nickel.

Abstract translation: 金属化学性质包括约9.0％至约16％重量的铬重量，约7.0％至约14％重量的钴的量，约10％至约20％的钼的量， 的铁量为约1.0％至约5.0％，铝的量为约0.05％至约0.75％重量，钛的量为约0.5％至约2.0％重量 ，锰的量不超过约0.8重量％，碳量在约0.02重量％至约0.10重量％之间，钛+铝合金的量在约0.55重量％至约2.75重量％之间， 和一定量的镍。

公开(公告)号：US10807179B2

公开(公告)日：2020-10-20

申请号：US15435932

申请日：2017-02-17

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Dechao Lin

IPC: B23K9/04 ,  B23K9/167 ,  B23K9/173 ,  C22C19/05 ,  B23K101/00 ,  B23K103/08 ,  B23K103/18

Abstract: In some embodiments, a method of welding includes welding at least one fill bead to fill at least one gap on a substrate with arc scanning by an arc welder. The gap is defined by at least one weld bead on the substrate. The weld beads are non-overlapping. A welded article includes a substrate including a crack-prone superalloy and at least one weld bead and at least one fill bead welded on the substrate. The fill bead, the weld bead, and a heat-affected zone of the substrate are micro-crack-free and macro-crack-free. In some embodiments, a method of welding includes welding weld beads on a substrate and welding fill beads on the substrate with an arc welder while arc scanning. The fill beads fill the gaps between neighboring pairs of weld beads. The fill beads are welded in a non-sequential order.

公开(公告)号：US10174412B2

公开(公告)日：2019-01-08

申请号：US15368161

申请日：2016-12-02

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Dechao Lin ,  David Bucci

IPC: B23K1/00 ,  C23C4/18 ,  B23K9/04 ,  B23K26/32 ,  C23C24/04 ,  C23C28/00 ,  C23C4/11 ,  B23K31/00 ,  C23C4/10 ,  F01D5/28 ,  B23K101/00 ,  B23K103/16

Abstract: A method for forming a vertically cracked thermal barrier coating is disclosed including positioning an article relative to a heat source. The article includes a thermal barrier coating disposed on a first surface of a substrate, and the substrate includes a second surface distal across the substrate from the first surface. Heat is applied locally to at least one discrete portion of the second surface of the substrate. At least one vertical crack in the thermal barrier coating is formed disposed over the at least one discrete portion. An article is disclosed including a substrate and a vertically-cracked thermal barrier coating disposed on the substrate. The vertically cracked thermal barrier coating includes at least one vertical crack in the thermal barrier coating and at least one of a low density of less than 85% of a theoretical density for the thermal barrier coating and a selective crack distribution.

公开(公告)号：US10077494B2

公开(公告)日：2018-09-18

申请号：US15264313

申请日：2016-09-13

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Dechao Lin ,  David Vincent Bucci ,  Shan Liu ,  Jon Schaeffer ,  John Adams ,  Ron Hendrix

IPC: C23C10/18 ,  F01D5/28 ,  F01D9/04 ,  C23C30/00 ,  C23C28/00 ,  C23C10/02 ,  C23C10/60 ,  F01D11/08 ,  F01D25/00

CPC classification number: C23C10/18 ,  C23C10/02 ,  C23C10/20 ,  C23C10/60 ,  C23C28/321 ,  C23C30/00 ,  F01D5/288 ,  F01D9/041 ,  F01D11/08 ,  F01D25/005 ,  F05D2220/32 ,  F05D2230/90 ,  F05D2300/611

Abstract: A process for forming a diffusion coating on a substrate is disclosed, including preparing a slurry including a donor metal powder, an activator powder, and a binder, and applying the slurry to the substrate. The slurry is dried on the substrate, forming a slurry layer on the substrate. A covering composition is applied over the slurry layer, and the covering composition is dried, forming at least one covering layer enclosing the slurry layer against the substrate. The slurry layer and the at least one covering layer are heated to form the diffusion coating on the substrate, the diffusion coating including an additive layer and an interdiffusion zone disposed between the substrate and the additive layer.

公开(公告)号：US09956637B2

公开(公告)日：2018-05-01

申请号：US14860199

申请日：2015-09-21

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Dechao Lin ,  John Gregory Obeirne ,  David Vincent Bucci ,  Srikanth Chandrudu Kottilingam ,  Yan Cui

IPC: B23K9/04 ,  B23K9/173 ,  B23K9/28 ,  B23K9/29 ,  B23K9/32 ,  B23K9/16 ,  B23K37/00 ,  B23P6/00 ,  F01D5/00 ,  B23K101/00

CPC classification number: B23K9/044 ,  B23K9/04 ,  B23K9/164 ,  B23K9/173 ,  B23K9/285 ,  B23K9/291 ,  B23K9/32 ,  B23K9/324 ,  B23K37/003 ,  B23K2101/001 ,  B23P6/007 ,  F01D5/005 ,  F05D2230/233

Abstract: A system and method for repairing a metal substrate includes an electrospark device and an electrode removably supported in the electrode holder. The electrospark device applies a coating of a material when placed into contact with the metal substrate. A cooling device to lowers the temperature of shielding gas flow below an ambient temperature. A conduit is arranged to direct a flow of the shielding gas to the interface of the electrode and the substrate to cool the area of the substrate receiving the coating.

公开(公告)号：US09783880B2

公开(公告)日：2017-10-10

申请号：US14133969

申请日：2013-12-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Dechao Lin ,  David Vincent Bucci

IPC: C23C10/48 ,  C23C10/56 ,  C23C12/00 ,  C23C10/60 ,  C23C10/20

CPC classification number: C23C12/00 ,  C23C10/20 ,  C23C10/60

Abstract: A slurry and a coating method are provided. The slurry includes, by weight, between 10% and 40% metal powder, between 10% and 15% activator, between 10% and 20% adhesive, between 10% and 20% thickener, up to 30% ceramic, and up to 25% binder. The coating method includes providing a slurry including, by weight, between 10% and 40% metal powder, between 10% and 15% activator, between 10% and 20% adhesive, between 10% and 20% thickener, up to 30% ceramic, and up to 25% organic polymer binder, providing a substrate, applying the slurry over a surface of the substrate to form a slurry coating, drying the slurry coating over the substrate, baking the substrate and the slurry coating, and curing the slurry coating over the substrate. The curing the slurry coating over the substrate transfers metal elements of the metal powder in the slurry to the substrate to form a coating on the substrate.