PREPARATION AND HIGH-TEMPERATURE BEHAVIOR OF ELECTROLYTIC ALUMINA FILM ON FE-CR-AL STAINLESS-STEEL

Authors
ARIES L ROY J ELHAJJAJI S ALBERICH L HERNANDEZ PV COSTESEQUE P AIGOUY T
Citation
L. Aries et al., PREPARATION AND HIGH-TEMPERATURE BEHAVIOR OF ELECTROLYTIC ALUMINA FILM ON FE-CR-AL STAINLESS-STEEL, Journal of Materials Science, 33(2), 1998, pp. 429-433
Citations number
22
Categorie Soggetti
Material Science
Journal title
Journal of Materials Science → ACNP
ISSN journal
00222461
Volume
33
Issue
2
Year of publication
1998
Pages
429 - 433
Database
ISI
SICI code
0022-2461(1998)33:2<429:PAHBOE>2.0.ZU;2-M
Abstract
Fe-23 Cr-5Al stainless steel was functionalized by a conversion treatm ent in order to allow alumina electrodeposition with strong interfacia l bonding. The very porous conversion coating prepared in acid solutio n had excellent adhesion and was conductive enough to permit cathodic reactions inducing local pH conditions favourable for the precipitatio n of alumina oxyhydroxide during electrolysis of aluminium salt soluti ons. The coating presented chemical composition gradients suitable for strong adhesion. The improvement of the thermal oxidation behaviour w as studied at 1000 degrees C.