Rumpling of nickel aluminide coatings : a reassessment of respective influence of thermal grown oxide and phase transformations

Vincent Maurel 1 Vladimir A. Esin 1 Pierre Sallot 2 Fabrice Gaslain 1 Sylvain Gailliegue 1 Luc Rémy 1
1 MAT - Centre des Matériaux
2 Safran Tech
Abstract : The respective influence of the oxidation and phase transformation on the rumpling of nickel aluminide coatings is reviewed using the thermal treatments in air and Ar atmosphere: β-(Ni,Pt)Al coating deposited on AM1 Ni-base superalloy was subjected to the isothermal and cyclic oxidation at 1100 °C as well as to the thermal cycling in Ar atmosphere. A comparative study of the coating microstructure evolution and surface roughness increase in different conditions suggests that the presence of adherent oxide layer is essential for the rumpling of nickel aluminide coatings on Ni-base superalloys.
Keywords : Aluminide coating Rumpling Thermal grown oxide Oxide spallation Phase transformation
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https://hal-mines-paristech.archives-ouvertes.fr/hal-01357836
Contributeur : Bibliothèque Umr7633 <>
Soumis le : mardi 30 août 2016 - 15:07:10
Dernière modification le : vendredi 11 octobre 2019 - 15:29:47

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Vincent Maurel, Vladimir A. Esin, Pierre Sallot, Fabrice Gaslain, Sylvain Gailliegue, et al.. Rumpling of nickel aluminide coatings : a reassessment of respective influence of thermal grown oxide and phase transformations. Materials at High Temperatures, Taylor and Francis, 2016, 33 (4-5), pp.318-324. ⟨10.1080/09603409.2016.1177997⟩. ⟨hal-01357836⟩

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