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The effect of the cooling rate on the course of oxidation of gamma titanium aluminide alloy

Joanna Małecka

Abstract

This paper presents the results of an investigation on the oxidation damage mechanisms of the intermetallic alloy Ti-46Al-7Nb-0.7Cr-0.1Si-0.2Ni. The oxidation was carried out in air at two temperatures: 900 °C and 925 °C. The effects of temperature and cooling rate were taken into consideration. It is also determined that the mass gain of the oxidized alloy is slightly higher when cooling is performed at a higher rate.


*Correspondence address, Joanna Małecka, Opole University of Technology Faculty of Mechanical Engineering, Mikołajczyka 5 Street, 45-271 Opole, Poland, Tel.: +48 774498466, Fax: +48774499927, E-mail:

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Received: 2018-02-27
Accepted: 2018-06-01
Published Online: 2018-10-30
Published in Print: 2018-11-12

© 2018, Carl Hanser Verlag, München