EDP Sciences Journals List
Issue J. Phys. IV France
Volume 03, Number C9, Décembre 1993
Proceedings of the 3rd International Symposium on High Temperature Corrosion and Protection of Materials
Actes du 3ème Colloque International sur la Corrosion et la Protection des Matériaux à Haute Température
Page(s) C9-419 - C9-428
DOI http://dx.doi.org/10.1051/jp4:1993944

Proceedings of the 3rd International Symposium on High Temperature Corrosion and Protection of Materials
Actes du 3ème Colloque International sur la Corrosion et la Protection des Matériaux à Haute Température

J. Phys. IV France 03 (1993) C9-419-C9-428

DOI: 10.1051/jp4:1993944

Development of oxidation resistant high temperature NbTiAl alloys and intermetallics

M. Allouard, Y. Bienvenu, L. Nazé and C.B. Brancho-Troconis

Ecole des Mines de Paris, Centre des Matériaux P.M. Fourt, BP. 87, 91003 Evry Cedex, France


Abstract
The effect of alloying elements like Ti, Al, Cr, V and Mo on the oxidation resistance of Nb at high temperature (between 700 °C and 1400 °C) has been studied. The value of the parabolic oxide growth constants, [MATH], depends on the nature 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.



© EDP Sciences 1993