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Characterization of the Temperature Capabilities of Advanced Disk Alloy ME3The successful development of an advanced powder metallurgy disk alloy, ME3, was initiated in the NASA High Speed Research/Enabling Propulsion Materials (HSR/EPM) Compressor/Turbine Disk program in cooperation with General Electric Engine Company and Pratt & Whitney Aircraft Engines. This alloy was designed using statistical screening and optimization of composition and processing variables to have extended durability at 1200 F in large disks. Disks of this alloy were produced at the conclusion of the program using a realistic scaled-up disk shape and processing to enable demonstration of these properties. The objective of the Ultra-Efficient Engine Technologies disk program was to assess the mechanical properties of these ME3 disks as functions of temperature in order to estimate the maximum temperature capabilities of this advanced alloy. These disks were sectioned, machined into specimens, and extensively tested. Additional sub-scale disks and blanks were processed and selectively tested to explore the effects of several processing variations on mechanical properties. Results indicate the baseline ME3 alloy and process can produce 1300 to 1350 F temperature capabilities, dependent on detailed disk and engine design property requirements.
Document ID
20020081280
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
Gabb, Timothy P. (NASA Glenn Research Center Cleveland, OH United States)
Telesman, Jack (NASA Glenn Research Center Cleveland, OH United States)
Kantzos, Peter T. (Ohio Aerospace Inst. Brook Park, OH United States)
OConnor, Kenneth (NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
September 7, 2013
Publication Date
August 1, 2002
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
NASA/TM-2002-211796
E-13491
NAS 1.15:211796
Funding Number(s)
PROJECT: RTOP 714-04-20
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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