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Low strain creep and aging of aluminum alloy 2219-T87 sheetThe constant load creep and isothermal aging characteristics of aluminum alloy 2219-T87 sheet have been studied experimentally and analytically in the temperature range 250 to 650 F at stress levels between 2.9 and 4.0 ksi (20 to 283 MPa). Testing variables were closely and automatically monitored. The data generated agree somewhat with the literature data base at lower temperatures, but above 500 F, discrepancies of greater than an order of magnitude in the time to 1% creep strain occur. Good correlation was found with the Larson-Miller parameter as modeled by a second-order polynomial in stress. Constitutive equations for time to 0.1%, 0.2%, 0.5%, and 1.0% creep are given. Information on residual mechanical properties and electrical conductivity is also provided.
Document ID
19810044990
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Navrotski, G.
(Reynolds Metals Co. Richmond, Va., United States)
Rummler, D. R.
(NASA Langley Research Center Materials Div., Hampton, Va., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Subject Category
Metallic Materials
Report/Patent Number
AIAA PAPER 81-0537
Meeting Information
Meeting: Conference on Structures, Structural Dynamics and Materials
Location: Atlanta, GA
Start Date: April 6, 1981
End Date: April 8, 1981
Accession Number
81A29394
Funding Number(s)
CONTRACT_GRANT: NSG-1155
Distribution Limits
Public
Copyright
Other

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