DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High temperature coatings for gas turbines

Abstract

Coating for high temperature gas turbine components that include a MCrAlX phase, and an aluminum-rich phase, significantly increase oxidation and cracking resistance of the components, thereby increasing their useful life and reducing operating costs. The aluminum-rich phase includes aluminum at a higher concentration than aluminum concentration in the MCrAlX alloy, and an aluminum diffusion-retarding composition, which may include cobalt, nickel, yttrium, zirconium, niobium, molybdenum, rhodium, cadmium, indium, cerium, iron, chromium, tantalum, silicon, boron, carbon, titanium, tungsten, rhenium, platinum, and combinations thereof, and particularly nickel and/or rhenium. The aluminum-rich phase may be derived from a particulate aluminum composite that has a core comprising aluminum and a shell comprising the aluminum diffusion-retarding composition.

Inventors:
Issue Date:
Research Org.:
~Individually Owned Patent
Sponsoring Org.:
USDOE
OSTI Identifier:
1174539
Patent Number(s):
6635362
Application Number:
09/873,964
Assignee:
Zheng, Xiaoci Maggie
Patent Classifications (CPCs):
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
DOE Contract Number:  
PS36-00GO10518
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Zheng, Xiaoci Maggie. High temperature coatings for gas turbines. United States: N. p., 2003. Web.
Zheng, Xiaoci Maggie. High temperature coatings for gas turbines. United States.
Zheng, Xiaoci Maggie. Tue . "High temperature coatings for gas turbines". United States. https://www.osti.gov/servlets/purl/1174539.
@article{osti_1174539,
title = {High temperature coatings for gas turbines},
author = {Zheng, Xiaoci Maggie},
abstractNote = {Coating for high temperature gas turbine components that include a MCrAlX phase, and an aluminum-rich phase, significantly increase oxidation and cracking resistance of the components, thereby increasing their useful life and reducing operating costs. The aluminum-rich phase includes aluminum at a higher concentration than aluminum concentration in the MCrAlX alloy, and an aluminum diffusion-retarding composition, which may include cobalt, nickel, yttrium, zirconium, niobium, molybdenum, rhodium, cadmium, indium, cerium, iron, chromium, tantalum, silicon, boron, carbon, titanium, tungsten, rhenium, platinum, and combinations thereof, and particularly nickel and/or rhenium. The aluminum-rich phase may be derived from a particulate aluminum composite that has a core comprising aluminum and a shell comprising the aluminum diffusion-retarding composition.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 21 00:00:00 EDT 2003},
month = {Tue Oct 21 00:00:00 EDT 2003}
}

Works referenced in this record:

The influence of NiAl 3 on the high temperature oxidation of a plasma-sprayed overlay coating
journal, May 2000