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It is known that the oxide scale formed on TiAl alloys is generally composed of a mixture of alumina (Al 2 O 3 ) and titania (TiO 2 ). The presence of niobium changes the activities of Ti and Al and influences the kinetics of oxidation and oxide layer composition. In this work, the Ti–46Al–8Nb alloy was subjected to cyclic oxidation in air at 700 °C (for 2 and 24 h) and 800 °C...
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