2. Author's Information
    Angelika Reichmann
    Centre for Electron Microscopy, Steyrerg. 17, 8010 Graz, Austria

    Martin Weiser
    Institute for Surface Science and Corrosion (LKO), University of Erlangen‐Nürnberg, Martensstr. 7, 91058 Erlangen, Germany

    Mihaela Albu
    Centre for Electron Microscopy, Steyrerg. 17, 8010 Graz, Austria

    Sannakaisa Virtanen
    Institute for Surface Science and Corrosion (LKO), University of Erlangen‐Nürnberg, Martensstr. 7, 91058 Erlangen, Germany

    Peter Poelt
    Institute for Electron Microscopy and Nanoanalysis, NAWI Graz, Graz University of Technology, Steyrerg. 17, 8010 Graz, Austria
  3. Abstract
    Since their discovery in 2006, cobalt-base superalloys have aroused increasing interest as potential materials for various high-temperature applications. One of the still unsolved problems is their resistance to oxidation. In the present study, the very first stages of the oxidation process of a Co-9Al-9W alloy were investigated. To this aim, the progress of the oxidation process was continuously observed at high magnification in an environmental scanning electron microscope (ESEM). Oxidation starts not necessarily at the grain boundaries, and both the onset temperature and the oxidation rate depend on the crystallographic orientation of the crystallites.
    Keywords
    Oxidation, Cobalt, Electron Microscope
    DOI: 10.1002/adem.201500146
    ADLID: 64139-v5
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  1. Keywords
    Oxidation Cobalt Electron Microscope
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