Beneficial effect of Pt and of pre-oxidation on the oxidation behaviour of an NiCoCrAlYTa bond-coating for thermal barrier coating systems

Autor: Djar Oquab, Eve Péré, Aymeric Raffaitin, Daniel Monceau, Aurélie Vande Put
Přispěvatelé: Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Turbomeca (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université de Pau et des Pays de l'Adour - UPPA (FRANCE)
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Oxidation of Metals
Oxidation of Metals, Springer Verlag, 2011, 75 (5-6), pp.247-279. ⟨10.1007/s11085-011-9241-y⟩
ISSN: 0030-770X
1573-4889
DOI: 10.1007/s11085-011-9241-y⟩
Popis: International audience; The oxidation behaviour of a thermal barrier coating (TBC) system is a major concern as the growth of the thermally grown oxide (TGO) layer on the bond-coating creates stresses that greatly favour the thermal barrier spallation. To delay the loss of the thermal protection provided, research has focused on the bond-coating composition and microstructure as well as on the parameters required for a suitable pre-oxidation treatment before the deposition of the ceramic top coat. Platinum is known to enhance the oxidation/corrosion resistance of MCrAlY coatings. The effect of Pt on the oxidation behaviour of a NiCoCrAlYTa coating was assessed in this study. In addition, pre-oxidation treatments were conducted to determine if the oxidation behaviour of the modified NiCoCrAlYTa coating could be further improved.
Databáze: OpenAIRE