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Title: MCrAlY bond coat with enhanced yttrium

Abstract

One or more embodiments relates to a method of producing 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. The method comprises depositing an MCrAlY material on a substrate, applying an Y.sub.2O.sub.3 paste, and heating the substrate in a non-oxidizing atmosphere at a temperature between 400-1300.degree. C. for a time sufficient to generate the Y--Al.sub.2O.sub.3 layer. Both the MCrAlY layer and the Y--Al.sub.2O.sub.3 layer have a substantial absence of Y.sub.2O.sub.3, YAG, and YAP phases.

Inventors:
;
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1312646
Patent Number(s):
9428825
Application Number:
13/363,486
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: 2012 Feb 01
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. United States: N. p., 2016. Web.
Jablonski, Paul D., & Hawk, Jeffrey A.. MCrAlY bond coat with enhanced yttrium. United States.
Jablonski, Paul D., and Hawk, Jeffrey A.. Tue . "MCrAlY bond coat with enhanced yttrium". United States. https://www.osti.gov/servlets/purl/1312646.
@article{osti_1312646,
title = {MCrAlY bond coat with enhanced yttrium},
author = {Jablonski, Paul D. and Hawk, Jeffrey A.},
abstractNote = {One or more embodiments relates to a method of producing 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. The method comprises depositing an MCrAlY material on a substrate, applying an Y.sub.2O.sub.3 paste, and heating the substrate in a non-oxidizing atmosphere at a temperature between 400-1300.degree. C. for a time sufficient to generate the Y--Al.sub.2O.sub.3 layer. Both the MCrAlY layer and the Y--Al.sub.2O.sub.3 layer have a substantial absence of Y.sub.2O.sub.3, YAG, and YAP phases.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {8}
}

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Works referenced in this record:

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


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