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Galvanic Protection Of 2219 Al By Al/Li PowderCoatings consisting of aluminum/lithium powders incorporated into acrylic resin found to protect panels of 2219 aluminum from corrosion by salt spray better than coating consisting of 2219 aluminum in same acrylic resin. Exact mechanism by which aluminum/lithium coatings protect against corrosion unknown, although galvanic mechanism suspected. These coatings (instead of chromium) applied to fasteners and bars to provide cathodic protection, both with and without impressed electrical current.
Document ID
19950065188
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Daech, Alfred
(Martin Marietta Corp.)
Date Acquired
August 17, 2013
Publication Date
January 1, 1995
Publication Information
Publication: NASA Tech Briefs
Volume: 19
Issue: 1
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
MFS-28713
Accession Number
95B10029
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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