Patent · US Active

Coating for internal surfaces of an airfoil and method of manufacture thereof

US10711361B2 · kind B2 · utility

0Cited by

9References

11Claims

0Family size

Assignee

RAYTHEON TECHNOLOGIES CORPORATION · US

Inventors

Lei Chen · South Windsor, US
Lesia V. Protsailo · Bolton, US
Michael N. Task · Vernon, US

Key dates

Filing date	May 25, 2017
Grant date	Jul 14, 2020
Priority date	—
Expiry date	May 25, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2300/701
WIPO fieldSurface technology, coating
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.