Effectiveness of ion vapor-deposited aluminum as a primer for epoxy and urethane topcoats

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Corrosion (Houston); (United States)

DOI:https://doi.org/10.5006/1.3293491· OSTI ID:5447399

McIntyre, J F; Hang, L ^[1]

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1. Florida Atlantic Univ., Boca Raton, FL (United States). Dept. of Ocean Engineering

Environment-regulation-compliant replacement coatings for use in various aerospace programs were evaluated. Although coatings that employ chromate primers and conversion coatings work effectively, enacted and pending changes in government regulations make it imperative that alternative coating systems be developed and evaluated. An integral part of the present investigation involved the use of electrochemical impedance spectroscopy to screen candidate coating systems. Preliminary results indicated that ion vapor-deposited aluminum afforded protection to AA2219-T87 (UNS A92219) and type 4340 (UNS G43400) steel substrates at least as good as the protection afforded by more-conventional coating systems. Results from electrochemical impedance spectroscopy measurements provided reliable predictions on the performance of the various coating systems.

• OSTI ID: 5447399
• Journal Information: Corrosion (Houston); (United States), Journal Name: Corrosion (Houston); (United States) Vol. 50:1; ISSN 0010-9312; ISSN CORRAK
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
ALUMINIUM
CADMIUM
CHROMIUM
COATINGS
CONTROL
CORROSION PROTECTION
DEPOSITION
ELEMENTS
ENERGY BEAM DEPOSITION
HYDROGEN COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
MATERIAL SUBSTITUTION
MATERIALS TESTING
METALS
OXYGEN COMPOUNDS
POLLUTION CONTROL
PROTECTIVE COATINGS
SEAWATER
STEELS
SURFACE COATING
TESTING
TRANSITION ELEMENTS
WATER