Development of oxidation resistant high temperature NbTiAl alloys and intermetallics

Michel Allouard (1) , Yves Bienvenu (1) , Loic Nazé (1) , Cora Bracho-Troconis (1)

1 CDM - Centre des Matériaux

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.

Domaines: Articles anciens

Michel Allouard, Yves Bienvenu, Loic Nazé, Cora Bracho-Troconis. Development of oxidation resistant high temperature NbTiAl alloys and intermetallics. Journal de Physique IV Proceedings, 1993, 03 (C9), pp.C9-419-C9-428. ⟨10.1051/jp4:1993944⟩. ⟨jpa-00252384⟩