Expanded austenite; crystallography and residual stress

Thomas Christiansen (Invited author), Thomas Strabo Hummelshøj (Invited author), Marcel A. J. Somers (Invited author)

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


    The identity of expanded austenite as developing during low temperature nitriding and/or carburizing of austenitic stainless steel has been under debate since the very first observation of this phase. In the present article recent results obtained with i) homogeneous samples of various uniform compositions and ii) unraveling of the contributions of stress-depth and composition-depth profiles in expanded austenite layers are summarized and discussed. It is shown through simulation of line profiles that the combined effects of composition gradients, stress gradients and stacking fault gradients can explain the observations in typical X-ray diffractograms.
    Original languageEnglish
    Title of host publicationSurface Modification Technologies XXII
    Publication date2009
    Publication statusPublished - 2009
    Event22nd International Conference on Surface Modification Technologies - Trollhattan, Sweden
    Duration: 22 Sept 200824 Sept 2008
    Conference number: 22


    Conference22nd International Conference on Surface Modification Technologies


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