公开(公告)号：US20230065105A1

公开(公告)日：2023-03-02

申请号：US17461136

申请日：2021-08-30

Applicant: General Electric Company

Inventor： Krishnamurthy Anand ,  Surinder Singh Pabla ,  Lacey Lynn Schwab ,  Biju Dasan ,  Seung-Woo Choi ,  Sathisha Chikkabikkodu Hanum ,  Ravikiran Kopparthi ,  David Vincent Bucci

IPC: C23C4/18 ,  C23C4/073 ,  C23C4/11 ,  F01D25/24

Abstract: A method includes applying a material coating on a surface of a machine component using a thermal spray, wherein the material coating is formed from a combination of a hardfacing material and aluminum-containing particles. The method also includes thermally treating the material coating to generate an oxide layer comprising aluminum from the aluminum-containing particles, wherein the oxide layer is configured to reduce oxidation of the hardfacing material.

公开(公告)号：US10436702B2

公开(公告)日：2019-10-08

申请号：US15149276

申请日：2016-05-09

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Krishnamurthy Anand ,  Paul Stephen Dimascio ,  Sundar Amancherla ,  Rebecca E. Hefner

IPC: G01N17/00 ,  G01N17/04 ,  G01R27/02

Abstract: A corrosion monitoring system includes at least one corrosion sensor. The corrosion sensor includes a metallic plug having at least one opening, at least one ceramic sheath in the opening of the metallic plug, and a plurality of probes. Each probe has a central portion with a predetermined cross sectional area extending from the metallic plug. The ceramic sheath electrically isolates each first end and each second end of the probes from the metallic plug and the other first ends and second ends. The probes are sized to provide a distribution of predetermined cross sectional areas of the central portions. The corrosion monitoring system also includes a resistance meter measuring an ohmic resistance for at least one of the probes and a computer determining a corrosion rate by correlating a rate of change of the ohmic resistance to the corrosion rate of the probe.

公开(公告)号：US09896585B2

公开(公告)日：2018-02-20

申请号：US14509566

申请日：2014-10-08

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Surinder Singh Pabla ,  Krishnamurthy Anand

IPC: C09D5/16 ,  C09D7/12 ,  C23C28/00 ,  F01D5/28 ,  B05D1/38

CPC classification number: C09D5/1693 ,  B05D1/38 ,  C09D5/1687 ,  C09D7/61 ,  C09D7/69 ,  C23C28/00 ,  F01D5/288

Abstract: A coating, a coating system, and a coating method are provided. The coating includes between about 0.25-35% filler particles embedded in a chrome phosphate binder matrix comprising a balance of the coating by volume. The filler particles have a size in the range from nanosize to six microns with an aspect ratio of from 1:1 to 3:1, and include up to 100% by weight lubricious particles with a balance hard particles. The lubricious particles are selected from the group consisting of boron nitride (BN), titanium nitride (TiN), titanium oxide (TiO2), zinc (Zn), tin (Sn), oxides of zinc and tin, and combinations thereof. The hard particles are selected from the group consisting of chromium carbide (CrC), tungsten carbide (WC), silicon (Si), aluminum (Al), oxides or nitrides of silicon and aluminum, and combinations thereof. A green slurry coating includes an evaporable solvent mixed with the filler particles and chrome phosphate binder matrix.

公开(公告)号：US20230227957A1

公开(公告)日：2023-07-20

申请号：US18180624

申请日：2023-03-08

Applicant: General Electric Company

Inventor： Krishnamurthy Anand ,  Surinder Singh Pabla ,  Lacey Lynn Schwab ,  Biju Dasan ,  Seung-Woo Choi ,  Sathisha Chikkabikkodu Hanum ,  Ravikiran Kopparthi ,  David Vincent Bucci

IPC: C23C4/18 ,  C23C4/073 ,  C23C4/11 ,  F01D25/00 ,  F01D25/24

CPC classification number: C23C4/18 ,  C23C4/073 ,  C23C4/11 ,  F01D25/00 ,  F01D25/24 ,  F05D2300/121 ,  F05D2300/17 ,  F05D2300/2112 ,  F05D2300/605

Abstract: A method includes applying a material coating on a surface of a machine component using a thermal spray, wherein the material coating is formed from a combination of a hardfacing material and aluminum-containing particles. The method also includes thermally treating the material coating to generate an oxide layer comprising aluminum from the aluminum-containing particles, wherein the oxide layer is configured to reduce oxidation of the hardfacing material.

公开(公告)号：US11603588B1

公开(公告)日：2023-03-14

申请号：US17461136

申请日：2021-08-30

Applicant: General Electric Company

Inventor： Krishnamurthy Anand ,  Surinder Singh Pabla ,  Lacey Lynn Schwab ,  Biju Dasan ,  Seung-Woo Choi ,  Sathisha Chikkabikkodu Hanum ,  Ravikiran Kopparthi ,  David Vincent Bucci

IPC: C23C4/18 ,  F01D25/24 ,  C23C4/11 ,  C23C4/073 ,  F01D25/00

Abstract: A method includes applying a material coating on a surface of a machine component using a thermal spray, wherein the material coating is formed from a combination of a hardfacing material and aluminum-containing particles. The method also includes thermally treating the material coating to generate an oxide layer comprising aluminum from the aluminum-containing particles, wherein the oxide layer is configured to reduce oxidation of the hardfacing material.

公开(公告)号：US11149354B2

公开(公告)日：2021-10-19

申请号：US16280283

申请日：2019-02-20

Applicant: General Electric Company

Inventor： Krishnamurthy Anand ,  Eklavya Calla ,  Biju Dasan ,  Surinder Singh Pabla ,  Priyanka Saxena

IPC: C23C30/00 ,  F01D5/28 ,  F01D11/12 ,  F01D25/00

Abstract: Various embodiments include a dense abradable coating, a method of reducing rub damage to a turbine engine part by applying the dense abradable coating thereto, and a turbine engine part having the abradable coating thereon. Particular embodiments include a dense abradable coating including a pore-free metallic composite, a high-aluminum containing brittle alloy, and a plurality of hollow abradable particles.

公开(公告)号：US10041361B2

公开(公告)日：2018-08-07

申请号：US14514455

申请日：2014-10-15

Applicant: General Electric Company

Inventor： Krishnamurthy Anand ,  Surinder Singh Pabla ,  Eklavya Calla

IPC: C23C4/04 ,  C23C30/00 ,  C23C4/12 ,  F01D5/28 ,  B22F1/02 ,  B22F3/10 ,  C23F13/14 ,  C25D5/50 ,  C23C4/10 ,  C23C28/00 ,  C23C24/00 ,  C23C4/11 ,  C09D5/00 ,  C23F13/06 ,  C09D1/00 ,  C09D5/03 ,  C23C4/06 ,  C23C4/129 ,  C23C4/134 ,  C22C1/05 ,  C22C29/00 ,  C09D7/61 ,  C09D7/40

Abstract: A composition for a reinforced metal matrix coating, and a method of preparing and coating the composition. The composition includes a plurality of sacrificial metallic binder particles that is anodic with respect to a base substrate, and a plurality of hard particles.

公开(公告)号：US20160145728A1

公开(公告)日：2016-05-26

申请号：US13896434

申请日：2013-05-17

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Jon Conrad SCHAEFFER ,  Krishnamurthy Anand ,  Sundar Amancherla ,  Eklayva Calla

IPC: C22F1/04 ,  B22F1/00 ,  C23C24/04 ,  C21D7/06 ,  C22C21/00 ,  C21D9/00

CPC classification number: C22F1/04 ,  B22F1/0003 ,  C21D7/06 ,  C21D9/0068 ,  C22C14/00 ,  C22C21/00 ,  C23C24/04 ,  F01D5/005 ,  F01D25/00 ,  F05D2230/80

Abstract: A titanium aluminide application process and article with a titanium aluminide surface are disclosed. The process includes cold spraying titanium aluminide onto an article within a treatment region to form a titanium aluminide surface. The titanium aluminide surface includes a refined gamma/alpha2 structure and/or the titanium aluminide is cold sprayed from a solid feedstock of a pre-alloyed powder.

公开(公告)号：US20160108509A1

公开(公告)日：2016-04-21

申请号：US14514455

申请日：2014-10-15

Applicant: General Electric Company

Inventor： Krishnamurthy Anand ,  Surinder Singh Pabla ,  Eklavya Calla

IPC: C23C4/04 ,  C23C30/00 ,  F01D5/28 ,  B22F1/02 ,  C23F13/14 ,  C25D5/50 ,  C23C4/12 ,  B22F3/10

CPC classification number: F01D5/288 ,  B22F1/025 ,  B22F3/10 ,  B22F2998/00 ,  B22F2998/10 ,  C09D1/00 ,  C09D5/00 ,  C09D5/031 ,  C09D7/61 ,  C09D7/66 ,  C22C1/051 ,  C22C29/005 ,  C23C4/04 ,  C23C4/06 ,  C23C4/10 ,  C23C4/11 ,  C23C4/12 ,  C23C4/129 ,  C23C4/134 ,  C23C24/00 ,  C23C28/324 ,  C23F13/06 ,  C23F13/14 ,  F05D2300/226 ,  F05D2300/228 ,  Y10T428/12535 ,  Y10T428/12576 ,  Y10T428/12597 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/12736 ,  Y10T428/12743 ,  Y10T428/12757 ,  Y10T428/12792 ,  Y10T428/12799 ,  Y10T428/12951 ,  B22F9/026 ,  B22F1/0096 ,  C23C4/00 ,  C22C29/06 ,  C22C29/12 ,  C22C29/14 ,  C22C29/16 ,  C22C29/065 ,  C22C29/08 ,  C22C29/10

Abstract: A composition for a reinforced metal matrix coating, and a method of preparing and coating the composition. The composition includes a plurality of sacrificial metallic binder particles that is anodic with respect to a base substrate, and a plurality of hard particles.

Abstract translation: 用于增强金属基质涂层的组合物，以及制备和涂覆组合物的方法。 该组合物包括相对于基底基底阳极的多个牺牲金属粘合剂颗粒和多个硬颗粒。

公开(公告)号：US09995169B2

公开(公告)日：2018-06-12

申请号：US13801547

申请日：2013-03-13

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Jon Conrad Schaeffer ,  Surinder Singh Pabla ,  Paul Stephen Dimascio ,  Krishnamurthy Anand ,  Joshua Lee Margolies ,  Padmaja Parakala

IPC: B05D7/00 ,  F01D25/08 ,  F01D25/00 ,  C23C28/04 ,  F01D5/28

CPC classification number: F01D25/08 ,  C23C28/042 ,  F01D5/288 ,  F01D25/005

Abstract: A process of forming a calcium-magnesium-aluminosilicate (CMAS) penetration resistant coating, and a CMAS penetration resistant coating are disclosed. The process includes providing a thermal barrier coating having a dopant, and exposing the thermal barrier coating to calcium-magnesium-aluminosilicate and gas turbine operating conditions. The exposing forming a calcium-magnesium-aluminosilicate penetration resistant layer. The coating includes a thermal barrier coating composition comprising a dopant selected from the group consisting of rare earth elements, non-rare earth element solutes, and combinations thereof. Additional or alternatively, the coating includes a thermal barrier coating and an impermeable barrier layer or a washable sacrificial layer positioned on an outer surface of the thermal barrier coating.