Nondestructive characterization of corrosion protective coatings on aluminum alloy substrates

Conference · Sat Jul 01 00:00:00 EDT 2000

OSTI ID:20082407

Hoffmann, J; Sathish, S; Khobaib, M; Meyendorf, N; Netzelmann, U; Matikas, T E

This paper describes the initial phase of the development of a nondestructive, multisensor approach for detecting, quantifying and monitoring degradation of organic coatings applied to aluminum surfaces. Descriptions of the purposes and chemical compositions of layered coatings used on aircraft structures are provided. The discussion then concentrates on ultrasonic thickness measurements. One is the well-established pulse/echo scanning acoustic microscopy and, as a proposed alternative, continuous acoustic waves measurements with a probe in contract to the sample. Advantages and disadvantages of the two methods and their potential as in field applications are discussed.

• Research Organization: Univ. of Dayton, OH (US)
• Sponsoring Organization: Defense Advanced Research Project Agency; US Department of the Air Force
• OSTI ID: 20082407
• Resource Relation: Conference: 1999 Materials Research Society Fall Meeting, Boston, MA (US), 11/29/1999--11/30/1999; Other Information: PBD: 2000; Related Information: In: Nondestructive methods for materials characterization. Materials Research Society symposium proceedings, Volume 591, by Baaklini, G.Y.; Meyendorf, N.; Matikas, T.E.; Gilmore, R.S. [eds.], 338 pages.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING
CORROSION PROTECTION
ALUMINIUM ALLOYS
COATINGS
NONDESTRUCTIVE TESTING
ACOUSTIC MEASUREMENTS
ACOUSTIC MICROSCOPY
EXPERIMENTAL DATA