Cavaletti, Eric and Mercier, Stéphane and Boivin, Denis and Bacos, Marie-Pierre and Josso, Pierre and Monceau, Daniel Development of a NiW in-situ diffusion barrier on a fourth generation nickel-base superalloy. (2008) Materials Science Forum, 595 - 5. 23-32. ISSN 0255-5476
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 3MB |
Official URL: http://dx.doi.org/10.4028/www.scientific.net/MSF.595-598.23
Abstract
A diffusion barrier based on a NiW electrolytic coating has been developed to limit interdiffusion between a Ni-base superalloy (MCNG) and a β-NiAl bondcoating. Isothermal oxidation tests of 50h at 1100°C confirmed that W-rich layer formed with NiW coating modifies the oxidation behaviour of the bondcoat and limits interdiffusion. The diffusion barrier reduced β-NiAl γ’-Ni3Al transformation in the bondcoating and prevented SRZ formation.
| Item Type: | Article |
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| Additional Information: | Thanks to Trans Tech Publications editor. The definitive version is available at http://www.scientific.net The original PDF of the article can be found at Materials Science Forum website : http://www.scientific.net/MSF/ |
| Audience (journal): | International peer-reviewed journal |
| Uncontrolled Keywords: | |
| Institution: | Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) |
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| Statistics: | download |
| Deposited On: | 21 Apr 2009 13:28 |
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