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Licensed Unlicensed Requires Authentication Published by De Gruyter October 16, 2013

The influence of AlCrN coating on the high-temperature corrosion resistance of Ti-46Al-7Nb alloy in an atmosphere containing 9%O2 + 0.2%HCl + 0.08%SO2 + N2

Joanna Małecka

Abstract

The results of investigation of the isothermal oxidation wear mechanism of Ti-46Al-7Nb-0.7Cr-0.1Si-0.2Ni intermetallic alloy with AlCrN coating are presented. Tests in 9%O2 + 0.2%HCl + 0.08%SO2 + N2 atmosphere were performed at a temperature of 700°C. The structure of the specimen and chemical composition of the oxidation products were analysed using scanning electron microscopy and energy dispersive X-ray analysis. In addition, mass changes were investigated.


* Correspondence address, Joanna Małecka PhD, Mikołajczyka 5 Street, 45-271 Opole, Poland, Tel.: +48774498466, Fax: +48774499927, E-mail:

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Received: 2012-10-28
Accepted: 2013-3-6
Published Online: 2013-10-16
Published in Print: 2013-09-12

© 2013, Carl Hanser Verlag, München