Oxidation of Metals

, Volume 89, Issue 1–2, pp 183–195 | Cite as

Microstructure, Chemical- and Phase Composition of Sanicro 25 Austenitic Steel After Oxidation in Steam at 700 °C

  • B. Rutkowski
  • A. Gil
  • A. Agüero
  • V. González
  • A. Czyrska-Filemonowicz
Original Paper


Microstructural investigation of Sanicro 25 austenitic steel after steam oxidation at 700 °C for up to 5000 h was conducted using advanced analytical- and high-resolution electron microscopy methods. The study revealed the presence of Cr2O3 plates at the scale surface. Underneath the scale was a chromium-depletion zone that evolved with the oxidation process. In the area that was not affected by oxidation, numerous M23C6, ε-Cu precipitates and some W-rich Laves phase were formed.


Sanicro 25 TEM Oxidation Steam 



The study was supported by the AGH-UST Project No. The authors would like to thank Adam Gruszczyński, M.Sc. and Krystyna Płońska-Niżnik (both AGH-UST) for FIB lamellae and conventional sample preparation, respectively. A. Agüero and V. González would like to acknowledge the Spanish Ministry of Economy and Energy for financial support (ENE2014-52359-C3-1-R). The authors also acknowledge KMM-VIN for supporting collaboration between AGH-UST and INTA institutions.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2017

Authors and Affiliations

  • B. Rutkowski
    • 1
  • A. Gil
    • 2
  • A. Agüero
    • 3
  • V. González
    • 3
  • A. Czyrska-Filemonowicz
    • 1
    • 4
  1. 1.Faculty of Metals Engineering and Industrial Computer ScienceAGH University of Science and TechnologyKrakówPoland
  2. 2.Faculty of Materials Science and CeramicsAGH University of Science and TechnologyKrakówPoland
  3. 3.Instituto Nacional de Técnica Aeroespacial, Departamento de Materiales y EstructurasTorrejón De ArdozSpain
  4. 4.International Centre of Electron Microscopy for Materials Science, AGH University of Science and TechnologyKrakówPoland

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