DEVELOPMENT OF OXIDATION-RESISTANT HIGH-TEMPERATURE NBTIAL ALLOYS ANDINTERMETALLICS

Authors
ALLOUARD M BIENVENU Y NAZE L BRACHOTROCONIS CB
Citation
M. Allouard et al., DEVELOPMENT OF OXIDATION-RESISTANT HIGH-TEMPERATURE NBTIAL ALLOYS ANDINTERMETALLICS, Journal de physique. IV, 3(C9), 1993, pp. 419-428
Citations number
6
Categorie Soggetti
Physics
Journal title
Journal de physique. IV → ACNP
ISSN journal
11554339
Volume
3
Issue
C9
Year of publication
1993
Part
1
Pages
419 - 428
Database
ISI
SICI code
1155-4339(1993)3:C9<419:DOOHNA>2.0.ZU;2-A
Abstract
The effect of alloying elements like Ti, Al, Cr, V and Mo on the oxida tion resistance of Nb at high temperature (between 700-degrees-C and 1 400-degrees-C) has been studied. The value of the parabolic oxide grow th constants, 0.1 g2/cm4 s < K(p) < 100 g2/cm4 s, depends on the natur e and morphology of oxides formed in the external scale. The growth of protective oxides, like alumina, requires a high content of alloying elements, which usually means a lower melting point and the formation of brittle phases.