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Influence of 2 at.% Ruthenium Addition on the Oxidation of γ-TiAl at 900°C in Air

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Abstract

The structure of oxide scales formed on Ti–55Al and Ti–2Ru–54Al (at. %) by oxidation at 900°C in air was investigated by X-Ray powder diffraction, optical microscopy, scanning-electron microscopy and electron-microprobe analysis. Alloying with ruthenium increases the oxidation resistance during isothermal oxidation, but the opposite trend is observed when samples are oxidized during temperature cycling. This behavior is discussed in terms of the micro-structure of the samples and the oxide scales formed during oxidation.

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Authors and Affiliations

  1. Institut für Physikalische Chemie, Universität Wien, A-1090, Wien, Währingerstrasse 42, Austria

    A. Grytsiv, P. Rogl & H. Schmidt

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  1. A. Grytsiv
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  2. P. Rogl
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  3. H. Schmidt
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Correspondence to P. Rogl.

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Grytsiv, A., Rogl, P. & Schmidt, H. Influence of 2 at.% Ruthenium Addition on the Oxidation of γ-TiAl at 900°C in Air. Oxidation of Metals 62, 15–28 (2004). https://doi.org/10.1023/B:OXID.0000038783.02712.a0

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  • DOI: https://doi.org/10.1023/B:OXID.0000038783.02712.a0

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