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Stress corrosion in high-strength aluminum alloysReport describes results of stress-corrosion tests on aluminum alloys 7075, 7475, 7050, and 7049. Tests compare performance of original stress-corrosion-resistant (SCR) aluminum, 7075, with newer, higher-strength SCR alloys. Alloys 7050 and 7049 are found superior in short-transverse cross-corrosion resistance to older 7075 alloy; all alloys are subject to self-loading effect caused by wedging of corrosion products in cracks. Effect causes cracks to continue to grow, even at very-low externally applied loads.
Document ID
19790000372
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Dorward, R. C. (Kaiser Aluminum and Chemical Corp.)
Hasse, K. R. (Kaiser Aluminum and Chemical Corp.)
Date Acquired
August 10, 2013
Publication Date
April 1, 1980
Publication Information
Publication: NASA Tech Briefs
Volume: 4
Issue: 3
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
MFS-23986
Accession Number
79B10372
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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