公开(公告)号：US11719105B2

公开(公告)日：2023-08-08

申请号：US17172746

申请日：2021-02-10

Applicant: Raytheon Technologies Corporation

Inventor： Michael N. Task ,  Xuan Liu ,  Russell A. Beers ,  Kevin W. Schlichting

IPC: C23C16/06 ,  F01D5/28 ,  C23C2/04 ,  C23C16/04 ,  F01D5/18 ,  C23C28/02 ,  C23C10/08 ,  C23C10/24

CPC classification number: F01D5/288 ,  C23C2/04 ,  C23C10/08 ,  C23C10/24 ,  C23C16/045 ,  C23C16/06 ,  C23C28/021 ,  F01D5/187 ,  F05D2220/32 ,  F05D2230/90 ,  F05D2300/132 ,  F05D2300/611

Abstract: A method of coating a component including aluminizing an array of internal passageways within the component; and chromizing a portion of the array of internal passageways within the component. A component, including an airfoil having an array of aluminized internal passageways, the array of aluminized internal passageways chromized up to a demarcation.

公开(公告)号：US20220213585A1

公开(公告)日：2022-07-07

申请号：US17706050

申请日：2022-03-28

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Michael N. Task ,  Xuan Liu

IPC: C23C10/26 ,  C23C10/54 ,  C23C10/56 ,  C23C10/52 ,  C23C10/30 ,  C23C10/60

Abstract: A process includes applying a slurry to a surface of a metallic article to produce a slurry film on the surface. The slurry is composed of a liquid carrier, chromium and aluminum, and an agent that is reactive with the chromium and aluminum to form intermediary compounds. The article and slurry film are then thermally treated at an activation temperature at which the agent reacts with the chromium and aluminum to form the intermediary compounds. The intermediary compounds deposit the chromium and aluminum on the surface. The thermal treating also diffuses the chromium and aluminum into a sub-surface region of the article such that the sub-surface region becomes enriched with chromium and aluminum.

公开(公告)号：US20230073446A1

公开(公告)日：2023-03-09

申请号：US17942453

申请日：2022-09-12

Applicant: Raytheon Technologies Corporation

Inventor： Michael N. Task

IPC: C23C16/455 ,  C23C16/40 ,  F01D5/28 ,  F01D5/34 ,  F01D25/00 ,  F01D5/02

Abstract: A process for coating a gas turbine engine disk comprises placing the disk having an outer surface into a chamber, the chamber configured to perform atomic layer deposition; injecting a first reactant into the chamber; forming a first monolayer gas thin film on the outer surface; removing the first reactant from the chamber; injecting a second reactant into the chamber; reacting second reactant with the first monolayer gas thin film; removing the second reactant from the chamber; and forming a protective barrier coating on the outer surface.

公开(公告)号：US20210164353A1

公开(公告)日：2021-06-03

申请号：US17172746

申请日：2021-02-10

Applicant: Raytheon Technologies Corporation

Inventor： Michael N. Task ,  Xuan Liu ,  Russell A. Beers ,  Kevin W. Schlichting

IPC: F01D5/28 ,  C23C2/04 ,  C23C16/04 ,  C23C16/06 ,  F01D5/18 ,  C23C28/02 ,  C23C10/08 ,  C23C10/24

Abstract: A method of coating a component including aluminizing an array of internal passageways within the component; and chromizing a portion of the array of internal passageways within the component. A component, including an airfoil having an array of aluminized internal passageways, the array of aluminized internal passageways chromized up to a demarcation.

公开(公告)号：US20200347506A1

公开(公告)日：2020-11-05

申请号：US16927417

申请日：2020-07-13

Applicant: Raytheon Technologies Corporation

Inventor： Lei Chen ,  Lesia V. Protsailo ,  Michael N. Task

IPC: C25D5/12 ,  C25D7/00 ,  C25D5/50 ,  C23C18/50 ,  C23C18/16 ,  F01D5/18 ,  C23C18/32 ,  C22C27/06 ,  C25D3/56 ,  C25D5/16 ,  C25D5/18

Abstract: Disclosed herein is a method of coating, comprising providing an article having an internal passage therein to be coated; electrolytically applying a first layer that comprises chromium or a chromium alloy onto a surface of the internal passage; electrolytically applying a second layer comprising aluminum or an aluminum alloy onto the first layer; and heat treating the article to promote interdiffusion between the first layer and the second layer.