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):
-
B - PERFORMING OPERATIONS B32 - LAYERED PRODUCTS B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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}
}
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Methods for fabricating YAG barrier coatings
patent, May 2011
- Lee, Hee Dong; Mah, Tai-II
- US Patent Document 7,935,387
Effect of manufacturing related parameters on oxidation properties of MCrAlY-bondcoats
journal, June 2008
- Subanovic, M.; Sebold, D.; Vassen, R.
- Materials and Corrosion, Vol. 59, Issue 6
Parameters affecting TGO growth and adherence on MCrAlY-bond coats for TBC's
journal, December 2006
- Toscano, J.; Vaβen, R.; Gil, A.
- Surface and Coatings Technology, Vol. 201, Issue 7
Optimization of Reactive-Element Additions to Improve Oxidation Performance of Alumina-Forming Alloys
journal, April 2003
- Pint, Bruce A.
- Journal of the American Ceramic Society, Vol. 86, Issue 4
Y-rich oxide distribution in plasma sprayed MCrAlY-coatings studied by SEM with a cathodoluminescence detector and Raman spectroscopy
journal, November 2009
- Gil, A.; Naumenko, D.; Vassen, R.
- Surface and Coatings Technology, Vol. 204, Issue 4
Halogen gas plasma-resistive members and method for producing the same, laminates, and corrosion-resistant members
patent, August 2004
- Yamada, Hirotake; Katsuda, Yuji; Ohashi, Tsuneaki
- US Patent Document 6,783,875