Jońca, Justyna Elżbieta
and Malard, Benoît and Soulié, Jérémy and Sanviemvongsak, Tom and Selezneff, Serge and Vande Put, Aurélie
Oxidation behaviour of a CoNiCrAlY/h-BN based abradable coating.
(2019)
Corrosion Science, 153. 170-177. ISSN 0010-938X
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 4MB |
Official URL: https://doi.org/10.1016/j.corsci.2019.02.030
Abstract
The oxidation resistance of a thermally sprayed CoNiCrAlY/h-BN abradable coating was studied at 750 and 900 °C. First, the high porosity of the abradable coating was carefully characterised in order to estimate the specific surface area of the coating, required to evaluate the oxidation kinetics. Then the formed oxides were investigated by XRD, Raman spectroscopy and SEM. At 900 °C, the mass variations exhibited a deviation from parabolic behaviour due to rapidly growing oxides. Meanwhile, at 750 °C, after a transient state, the oxidation rate reaches a steady state, indicating that a protective alumina scale was maintained at this temperature.
| Item Type: | Article |
|---|---|
| HAL Id: | hal-02143137 |
| Audience (journal): | International peer-reviewed journal |
| Uncontrolled Keywords: | |
| Institution: | French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE) Other partners > SAFRAN (FRANCE) |
| Laboratory name: | |
| Statistics: | download |
| Deposited By: | Yves MOMBOISSE |
| Deposited On: | 29 May 2019 08:38 |
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