公开(公告)号：US20200238415A1

公开(公告)日：2020-07-30

申请号：US16256340

申请日：2019-01-24

Applicant: General Electric Company

Inventor： Yan Cui ,  Michael Arnett ,  Matthew Laylock ,  Brian Lee Tollison

IPC: B23K1/008 ,  B23K1/20 ,  B23K1/19

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.

公开(公告)号：US10654120B2

公开(公告)日：2020-05-19

申请号：US15373895

申请日：2016-12-09

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Yan Cui ,  Brian Leslie Henderson ,  Brian Lee Tollison ,  Srikanth Chandrudu Kottilingam

IPC: B23K1/00 ,  B23K1/20 ,  B23K101/00 ,  B23K101/06

Abstract: A method includes heating a brazing material in a braze chamber of a first component to a braze temperature to melt the brazing material. The brazing material flows from the braze chamber, through at least one internal channel of the first component, and into a braze gap between the first component and a second component to braze the first component to the second component. A brazed article includes a first component having a braze chamber and at least one internal channel extending from the braze chamber to an external surface, a second component having at least one braze surface separated from the external surface of the first component by a braze gap, and a braze material in the braze gap. A braze assembly includes a first component, a second component, and a brazing material in the braze chamber.

公开(公告)号：US20200149134A1

公开(公告)日：2020-05-14

申请号：US16185185

申请日：2018-11-09

Applicant: General Electric Company

Inventor： Yan Cui ,  Michael Douglas Arnett ,  Matthew Joseph Laylock ,  Brian Lee Tollison ,  Brad Wilson VanTassel

IPC: C22C19/05

Abstract: A composition of matter includes from about 16 to about 20 wt % chromium, greater than 6 to about 10 wt % aluminum, from about 2 to about 10 wt % iron, less than about 0.04 wt % yttrium, less than about 12 wt % cobalt, less than about 1.0 wt % manganese, less than about 1.0 wt % molybdenum, less than about 1.0 wt % silicon, less than about 0.25 wt % carbon, about 0.03 wt % boron, less than about 1.0 wt % tungsten, less than about 1.0 wt % tantalum, about 0.5 wt % titanium, about 0.5 wt % hafnium, about 0.5 wt % rhenium, about 0.4 wt % lanthanide elements, and the balance being nickel and incidental impurities. This nickel-based superalloy composition may be used in superalloy articles, such as a blade, nozzle, a shroud, a splash plate, a squealer tip of the blade, and a combustor of a gas turbine engine.

公开(公告)号：US10571126B2

公开(公告)日：2020-02-25

申请号：US15427831

申请日：2017-02-08

Applicant: GENERAL ELECTRIC COMPANY

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

IPC: F23R3/32 ,  F23R3/28 ,  B01F13/00 ,  B23K1/00 ,  B23K1/19 ,  F23D14/64 ,  F23R3/04 ,  B23K101/00 ,  B23K103/04

Abstract: Manufactured articles, and methods of manufacturing enhanced wear protected components and articles. More particularly, wear protected components and articles, such as combustor components of turbine engines, and even more particularly enhanced wear protected micromixer tubes and assemblies thereof with one or more micromixer plates, the micromixer tubes having wear protection for enhanced performance and reduced wear related failure. Methods including surface treatment to enhance wear, including vacuum braze application of coatings to enhance surface hardness for wear benefits.

公开(公告)号：US10265806B2

公开(公告)日：2019-04-23

申请号：US15661360

申请日：2017-07-27

Applicant: General Electric Company

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

IPC: B23K31/02 ,  B23K35/02 ,  B23K1/00 ,  B23K35/30 ,  F01D5/18 ,  F01D9/02 ,  F01D25/12

Abstract: A system for sealing an internal passage of a component includes a closure element positioned within the internal passage, and a joint material coupling the closure element to at least one passage wall that defines the internal passage. The system also includes a flexible braze element positioned proximate the closure element, the joint material, and the at least one passage wall.

公开(公告)号：US10265792B2

公开(公告)日：2019-04-23

申请号：US15806565

申请日：2017-11-08

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Yan Cui ,  Srikanth Chandrudu Kottilingam ,  Brian Lee Tollison ,  Timothy Neal Pletcher ,  Richard Ryan Pilson

IPC: B23K1/00 ,  B22F7/06 ,  B22F5/04 ,  B23F5/00 ,  B23K9/04 ,  B23K15/00 ,  B23K35/36 ,  B23K35/02 ,  B32B15/01 ,  C23C30/00 ,  B22F5/00 ,  B23K10/02 ,  B23K26/34 ,  F01D5/14 ,  F01D5/28 ,  B22F7/04 ,  B23K101/00

Abstract: A hybrid article is disclosed including a coating disposed on and circumscribing the lateral surface of a core having a core material. The coating includes about 35% to about 95% of a first metallic material having a first melting point, and about 5% to about 65% of a second metallic material having a second melting point lower than the first melting point. The coating is sinter-bonded to the core. A method for forming the hybrid article is disclosed including disposing the core in a die, introducing a slurry having the metallic materials into a gap between the lateral surface and the die, and sintering the slurry, forming the coating. A method for closing an aperture of an article is disclosed including inserting the hybrid article into the aperture, and brazing the hybrid article to the article, welding the aperture with the hybrid article serving as weld filler, or both.

公开(公告)号：US10227878B2

公开(公告)日：2019-03-12

申请号：US15065968

申请日：2016-03-10

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Srikanth Chandrudu Kottilingam ,  Yan Cui ,  Brian Lee Tollison ,  David Edward Schick

IPC: B29C33/42 ,  F01D5/20 ,  F01D5/14 ,  F01D5/18 ,  B29L31/08

Abstract: An article and method of forming an article are provided. The article includes a side wall at least partially defining an inner region and an outer region of the article, the side wall having a first end and a second end, an end wall formed proximal to the first end of the side wall, the end wall defining a tip portion of the article, and a cooling channel formed in the side wall, within the tip portion. The method of forming an article includes positioning a first sheet of material having a channel formed therein over a first end of a body, positioning at least one additional sheet of material over the first sheet of material, and securing the first sheet of material and the at least one additional sheet of material to the body to form a tip portion including a cooling channel formed therein.

公开(公告)号：US10126119B2

公开(公告)日：2018-11-13

申请号：US15407595

申请日：2017-01-17

Applicant: General Electric Company

Inventor： Brian Lee Tollison ,  Srikanth Chandrudu Kottilingam ,  Yan Cui ,  Bryan Joseph Germann

IPC: G01B11/16 ,  G01M15/14

Abstract: A method of forming a passive strain indicator on a preexisting component includes directly depositing a plurality of fiducial markers on a portion of the outer surface of the preexisting component, the fiducial markers including a material that is compatible with the material of the outer surface. A method of evaluating a component includes initially scanning a plurality of fiducial markers on a portion of an outer surface of the component, subjecting the component to at least one duty cycle, subsequently scanning the plurality of fiducial markers after the at least one duty cycle, measuring a displacement of the plurality of fiducial markers by comparing the subsequent scan to the initial scan, and determining a remaining usable life of the component by looking up in a database a predetermined value of the remaining usable life of the component corresponding to the measured displacement of the plurality of fiducial markers.

公开(公告)号：US20180202799A1

公开(公告)日：2018-07-19

申请号：US15407595

申请日：2017-01-17

Applicant: General Electric Company

Inventor： Brian Lee Tollison ,  Srikanth Chandrudu Kottilingam ,  Yan Cui ,  Bryan Joseph Germann

IPC: G01B11/16 ,  G01M15/14

CPC classification number: G01B11/165 ,  G01B11/002 ,  G01B11/24 ,  G01B21/047 ,  G01M15/14

Abstract: A method of forming a passive strain indicator on a preexisting component includes directly depositing a plurality of fiducial markers on a portion of the outer surface of the preexisting component, the fiducial markers including a material that is compatible with the material of the outer surface. A method of evaluating a component includes initially scanning a plurality of fiducial markers on a portion of an outer surface of the component, subjecting the component to at least one duty cycle, subsequently scanning the plurality of fiducial markers after the at least one duty cycle, measuring a displacement of the plurality of fiducial markers by comparing the subsequent scan to the initial scan, and determining a remaining usable life of the component by looking up in a database a predetermined value of the remaining usable life of the component corresponding to the measured displacement of the plurality of fiducial markers.

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.