Oxidation of Metals

, Volume 79, Issue 3–4, pp 313–323 | Cite as

Three-Dimensional Damage Evolution Measurement in EB-PVD TBCs Using Synchrotron Laminography

  • Vincent Maurel
  • Lukas Helfen
  • Romain Soulignac
  • Thilo F. Morgeneyer
  • Alain Koster
  • Luc Rémy
Original Paper

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.

Keywords

EB-PVD Synchrotron computed laminography Thermal cycling 3D morphology of Ni3Al 

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Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  • Vincent Maurel
    • 1
  • Lukas Helfen
    • 2
    • 3
  • Romain Soulignac
    • 1
    • 4
  • Thilo F. Morgeneyer
    • 1
  • Alain Koster
    • 1
  • Luc Rémy
    • 1
  1. 1.Centre des MatériauxMines ParisTech, UMR CNRS 7633Evry CedexFrance
  2. 2.Institute for Photon Science and Synchrotron Radiation (ISS/ANKA)Karlsruhe Institute of TechnologyKarlsruheGermany
  3. 3.European Synchrotron Radiation Facility (ESRF)GrenobleFrance
  4. 4.SNECMA/SAFRAN Group YQMMMoissy-CramayelFrance

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