NDLI: The tensile properties of advanced nickel-base disk superalloys during quenching heat treatments

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The tensile properties of advanced nickel-base disk superalloys during quenching heat treatments

Content Provider	NASA Technical Reports Server (NTRS)
Author	Biles, Tiffany Gabb, Timothy P. Konkel, William Gayda, John Kantzos, Pete T.
Copyright Year	2001
Description	There is a need to increase the temperature capabilities of superalloy turbine disks. This would allow full utilization of higher temperature combustor and airfoil concepts under development. One approach to meet this goal is to modify the processing and chemistry of advanced alloys, while preserving the ability to use rapid cooling supersolvus heat treatments to achieve coarse grain, fine gamma prime microstructures. An important step in this effort is to understand the key high temperature tensile properties of advanced alloys as they exist during supersolvus heat treatments. This could help in projecting cracking tendencies of disks during quenches from supersolvus heat treatments. The objective of this study was to examine the tensile properties of two advanced disk superalloys during simulated quenching heat treatments. Specimens were cooled from the solution heat treatment temperatures at controlled rates, interrupted, and immediately tensile tested at various temperatures. The responses and failure modes were compared and related to the quench cracking tendencies of disk forgings.
File Size	1659282
Page Count	20
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20020012808
Archival Resource Key	ark:/13960/t3130tp39
Language	English
Publisher Date	2001-10-01
Access Restriction	Open
Subject Keyword	Metals And Metallic Materials Forging Heat Treatment Cooling Nickel Alloys Heat Resistant Alloys Failure Modes Airfoils High Temperature Combustion Chambers Microstructure Turbines Tensile Properties 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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