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Title: MCrAlY bond coat with enhanced Yttrium layer

Abstract

One or more embodiments relates to an MCrAlY bond coat comprising an MCrAlY layer in contact with a Y--Al.sub.2O.sub.3 layer. The MCrAlY layer is comprised of a .gamma.-M solid solution, a .beta.-MAl intermetallic phase, and Y-type intermetallics. The Y--Al.sub.2O.sub.3 layer is comprised of Yttrium atoms coordinated with oxygen atoms comprising the Al.sub.2O.sub.3 lattice. Both the MCrAlY layer and the Y--Al.sub.2O.sub.3 layer have a substantial absence of Y--Al oxides, providing advantage in the maintainability of the Yttrium reservoir within the MCrAlY bulk. The MCrAlY bond coat may be fabricated through application of a Y.sub.2O.sub.3 paste to an MCrAlY material, followed by heating in a non-oxidizing environment.

Inventors:
;
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1178259
Patent Number(s):
9012032
Application Number:
14/065,726
Assignee:
U.S. Department of Energy (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Oct 29
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Jablonski, Paul D., and Hawk, Jeffrey A. MCrAlY bond coat with enhanced Yttrium layer. United States: N. p., 2015. Web.
Jablonski, Paul D., & Hawk, Jeffrey A. MCrAlY bond coat with enhanced Yttrium layer. United States.
Jablonski, Paul D., and Hawk, Jeffrey A. Tue . "MCrAlY bond coat with enhanced Yttrium layer". United States. https://www.osti.gov/servlets/purl/1178259.
@article{osti_1178259,
title = {MCrAlY bond coat with enhanced Yttrium layer},
author = {Jablonski, Paul D. and Hawk, Jeffrey A.},
abstractNote = {One or more embodiments relates to an MCrAlY bond coat comprising an MCrAlY layer in contact with a Y--Al.sub.2O.sub.3 layer. The MCrAlY layer is comprised of a .gamma.-M solid solution, a .beta.-MAl intermetallic phase, and Y-type intermetallics. The Y--Al.sub.2O.sub.3 layer is comprised of Yttrium atoms coordinated with oxygen atoms comprising the Al.sub.2O.sub.3 lattice. Both the MCrAlY layer and the Y--Al.sub.2O.sub.3 layer have a substantial absence of Y--Al oxides, providing advantage in the maintainability of the Yttrium reservoir within the MCrAlY bulk. The MCrAlY bond coat may be fabricated through application of a Y.sub.2O.sub.3 paste to an MCrAlY material, followed by heating in a non-oxidizing environment.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {4}
}

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Works referenced in this record:

Effect of manufacturing related parameters on oxidation properties of MCrAlY-bondcoats
journal, June 2008


Parameters affecting TGO growth and adherence on MCrAlY-bond coats for TBC's
journal, December 2006