EFFECT OF CHROMIA AND ALUMINA COATINGS ON THE HIGH-TEMPERATURE BEHAVIOR OF F17TI STAINLESS-STEEL IN AIR - EFFECT OF A RARE-EARTH ELEMENT OXIDE

Authors
BONNET G SILVA M CHEVALIER S LARPIN JP COLSON JC
Citation
G. Bonnet et al., EFFECT OF CHROMIA AND ALUMINA COATINGS ON THE HIGH-TEMPERATURE BEHAVIOR OF F17TI STAINLESS-STEEL IN AIR - EFFECT OF A RARE-EARTH ELEMENT OXIDE, Surface & coatings technology, 80(1-2), 1996, pp. 76-79
Citations number
12
Categorie Soggetti
Materials Science, Coatings & Films
Journal title
Surface & coatings technology → ACNP
ISSN journal
02578972
Volume
80
Issue
1-2
Year of publication
1996
Pages
76 - 79
Database
ISI
SICI code
0257-8972(1996)80:1-2<76:EOCAAC>2.0.ZU;2-P
Abstract
The MOCVD technique was used to deposit thin oxide films of chromium, aluminium and rare earth elements on stainless steel surfaces. These o xides were deposited alone or together, successively or by codepositio n. Coated samples were then submitted to high-temperature oxidation te sts, under isothermal conditions at 1273 K, or under cyclic conditions . An improvement in steel behaviour was observed in every case, partic ularly for codeposited Ln(2)O(3)/Cr2O3: the weight gain decreased duri ng oxidation, and the scale spallation phenomenon disappeared under cy clic conditions, enhancing the alloy lifetime.