REHEALING ABILITY OF OXIDE SCALES FORMED ON MICROCRYSTALLINE K38G COATINGS

Authors
LOU HY ZHU SL WANG FH
Citation
Hy. Lou et al., REHEALING ABILITY OF OXIDE SCALES FORMED ON MICROCRYSTALLINE K38G COATINGS, Oxidation of metals, 43(3-4), 1995, pp. 317-328
Citations number
7
Categorie Soggetti
Metallurgy & Metallurigical Engineering
Journal title
Oxidation of metals → ACNP
ISSN journal
0030770X
Volume
43
Issue
3-4
Year of publication
1995
Pages
317 - 328
Database
ISI
SICI code
0030-770X(1995)43:3-4<317:RAOOSF>2.0.ZU;2-O
Abstract
The rehealing ability of the protective oxide scales formed on a micro crystalline coating of the Ni-base superalloy K38G has been studied. T he results indicated that the oxide scales on the coating may be rehea led when the original scales ale destroyed and the coating still has e xcellent resistance against high-temperature oxidation. When the origi nal Al2O3 oxide scales spall, mixed-oxide scales of both (Al, Cr)(2)O- 3 and TiO2 can form on the surface. The mixed scales are very protecti ve and adherent.