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Three-dimensional damage evolution measurement in EB-PVD TBCs using synchrotron laminography

Abstract : This study provides the first results of three dimensional microstructural evolution analysis of a typical EB-PVD thermal barrier coating subjected to thermal cycling. Results have been obtained using the technique of synchrotron-radiation computed laminography (SRCL), enabling the scanning of samples that are thin but extended in two dimensions. A correlation with quantitative measurements of phase transformation from β-NiAl to γ'-Ni3Al was achieved from 3D images and 2D cross-section analysis. Morphological features of phase transformation and damaged areas within the bond-coat layer obtained by SRCL are discussed.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00820124
Contributor : Bibliothèque Umr7633 <>
Submitted on : Friday, May 3, 2013 - 11:11:56 AM
Last modification on : Thursday, September 24, 2020 - 6:30:04 PM

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Vincent Maurel, Lukas Helfen, Romain Soulignac, Thilo F. Morgeneyer, Alain Köster, et al.. Three-dimensional damage evolution measurement in EB-PVD TBCs using synchrotron laminography. Oxidation of Metals, Springer Verlag, 2013, 79, pp.313-323. ⟨10.1007/s11085-012-9333-3⟩. ⟨hal-00820124⟩

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