NDLI: An oxidation-resistant coating alloy for gamma titanium aluminides

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An oxidation-resistant coating alloy for gamma titanium aluminides

Content Provider	NASA Technical Reports Server (NTRS)
Author	Brindley, William J. Smialek, James L. Brady, Michael P.
Copyright Year	1997
Description	Titanium aluminides based on the g-phase (TiAl) offer the potential for component weight savings of up to 50 percent over conventional superalloys in 600 to 850 C aerospace applications. Extensive development efforts over the past 10 years have led to the identification of "engineering" gamma-alloys, which offer a balance of room-temperature mechanical properties and high-temperature strength retention. The gamma class of titanium aluminides also offers oxidation and interstitial (oxygen and nitrogen) embrittlement resistance superior to that of the alpha(sub 2) (Ti3Al) and orthorhombic (Ti2AlNb) classes of titanium aluminides. However, environmental durability is still a concern, especially at temperatures above 750 to 800 C. Recent work at the NASA Lewis Research Center led to the development of an oxidation-resistant coating alloy that shows great promise for the protection of gamma titanium aluminides.
File Size	15204
Page Count	2
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20050180496
Archival Resource Key	ark:/13960/t14n4455p
Language	English
Publisher Date	1997-03-01
Access Restriction	Open
Subject Keyword	Metals And Metallic Materials Titanium Alloys Oxidation Resistance Heat Resistant Alloys Aluminum Alloys Oxidation Titanium Aluminides Plasma Spraying Microstructure Protective Coatings Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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