Thermal Alumina Scales on FeCrAl: Characterization and Growth Mechanism

Abstract:

Article Preview

High temperature oxidation resistance of alumina-forming materials is connected to the growth of dense, stable and protective alumina scales. Depending on temperature, impurities present in the base alloys, presence of water vapour in the oxidizing atmosphere, the alumina scales are composed of alpha-alumina (which is the stable phase obtained for temperatures over 1000°C) or of transient alumina (γ,θ,δ obtained for lower temperatures). It is generally considered that γ- Al2O3 grows when T<850°C, that θ-Al2O3 is present for 850°C

Info:

Periodical:

Materials Science Forum (Volumes 595-598)

Edited by:

Pierre Steinmetz, Ian G. Wright, Alain Galerie, Daniel Monceau and Stéphane Mathieu

Pages:

915-922

DOI:

10.4028/www.scientific.net/MSF.595-598.915

Citation:

S. Chevalier et al., "Thermal Alumina Scales on FeCrAl: Characterization and Growth Mechanism", Materials Science Forum, Vols. 595-598, pp. 915-922, 2008

Online since:

September 2008

Export:

Price:

$35.00

In order to see related information, you need to Login.