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Powder metallurgy processing of high strength turbine disk alloysUsing vacuum-atomized AF2-1DA and Mar-M432 powders, full-scale gas turbine engine disks were fabricated by hot isostatically pressing (HIP) billets which were then isothermally forged using the Pratt & Whitney Aircraft GATORIZING forging process. While a sound forging was produced in the AF2-1DA, a container leak had occurred in the Mar-M432 billet during HIP. This resulted in billet cracking during forging. In-process control procedures were developed to identify such leaks. The AF2-1DA forging was heat treated and metallographic and mechanical property evaluation was performed. Mechanical properties exceeded those of Astroloy, one of the highest temperature capability turbine disk alloys presently used.
Document ID
19760042870
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Evans, D. J.
(United Technologies Materials Engineering and Research Laboratory East Hartford, Conn., United States)
Date Acquired
August 8, 2013
Publication Date
March 1, 1976
Subject Category
Mechanical Engineering
Report/Patent Number
ASME PAPER 76-GT-96
Meeting Information
Meeting: Gas Turbine Conference and Products Show
Location: New Orleans, LA
Start Date: March 21, 1976
End Date: March 25, 1976
Sponsors: American Society of Mechanical Engineers
Accession Number
76A25836
Funding Number(s)
CONTRACT_GRANT: NAS3-15841
Distribution Limits
Public
Copyright
Other

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