Cyclic Oxidation Behavior of TBC Systems with a Pt-Rich γ-Ni+γ′-Ni3Al Bond-Coating Made by SPS
| Autor: | Pauline Audigié, Aurélie Rouaix-Vande Put, Daniel Monceau, Serge Selezneff, Claude Estournès, Sarah Hamadi |
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| Přispěvatelé: | Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Société nationale d'étude et de constructions de moteurs d'avion - SNECMA (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Centre interuniversitaire de recherche et d'ingenierie des matériaux (CIRIMAT), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC), SAFRAN Group |
| Rok vydání: | 2013 |
| Předmět: |
Bond-coatings -Thermal cycling
TBC systems Materials science Matériaux Spark plasma sintering 02 engineering and technology Temperature cycling 01 natural sciences 7. Clean energy Electron beam physical vapor deposition [SPI.MAT]Engineering Sciences [physics]/Materials Inorganic Chemistry Thermal barrier coating 0103 physical sciences Materials Chemistry Cubic zirconia Ceramic Yttria-stabilized zirconia 010302 applied physics Metals and Alloys Bond-coatings - Thermal cycling Pt-rich c-Ni?c0-Ni3Al 021001 nanoscience & nanotechnology Superalloy Chemical engineering visual_art visual_art.visual_art_medium 0210 nano-technology Spallation |
| Zdroj: | Oxidation of Metals Oxidation of Metals, Springer Verlag, 2014, vol. 81 (n° 1-2), pp. 33-45. ⟨10.1007/s11085-013-9417-8⟩ |
| ISSN: | 1573-4889 0030-770X |
| DOI: | 10.1007/s11085-013-9417-8 |
| Popis: | International audience; To obtain long-lasting thermal barrier coating (TBC) systems, two types of Pt-rich γ-Ni+γ′-Ni3Al bond-coatings (BC) were fabricated by spark plasma sintering (SPS). The former had the highest possible Pt content (Ni-30Pt-25Al in at.%) while the latter had the highest possible Al level (Ni-28Al-17Pt in at.%). Hf was added as a reactive element. TBCs were fabricated on different superalloys (AM1, René N5 and MCNG) with the aforementioned BCs and with zirconia stabilized with yttria top coats made by SPS or electron beam physical vapor deposition (EBPVD). The cyclic oxidation resistance of these systems was studied at 1,100 °C in air. Most TBCs with a Pt-rich γ–γ′ BC showed better thermal cycling resistance when compared to the reference TBCs (β-(Ni,Pt)Al diffusion BC and EBPVD ceramic top coat), with lifetimes up to 1,745 cycles instead of 700 for the reference, and despite the fabrication defects observed within the SPS BCs. Cu was tested as an addition in the BCs and proved to have a slight negative effect on the system lifetime. Moreover, the fourth generation MCNG substrate led to the best cyclic oxidation behavior. |
| Databáze: | OpenAIRE |
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