Synchrotron based absorption edge tomography for §D characterization of the microstructure of MG-Y-Zn alloys
- Absorption edge tomography is a method which exploits the sudden change of the attenuation coefficient, when the photon energy crosses the absorption edge of an element. The beamline BAMline at BESSY II, which is operated by the Federal Institute for Materials Research and Testing, can provide a monochromatized beam in a photon energy range from 5 keV up to 80 keV with a bandwidth of 2%. Together with the microtomography setup, this enables differential tomography sensitive to any element with N >= 24 (Cr) by using an appropriate K- or L-edge in this range. Here, absorption edge tomography at the Yttrium edge is employed to perform a non-destructive 3D characterization of the microstructure of a high strength Mg-Y-Zn alloy. The long period stacking ordered (LPSO) phase which forms fibres in this material was extracted based on the Yttrium content and the fibre length distribution was analysed.
Autor*innen: | Christian Gollwitzer |
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Koautor*innen: | Sandra Cabeza, G. Garces |
Dokumenttyp: | Posterpräsentation |
Veröffentlichungsform: | Präsentation |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2017 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten |
Freie Schlagwörter: | Absorption edge; BAMline; Computed Tomography; Synchrotron |
Veranstaltung: | Ninth Joint BER II and BESSY II User Meeting |
Veranstaltungsort: | Berlin, Germany |
Beginndatum der Veranstaltung: | 13.12.2017 |
Enddatum der Veranstaltung: | 15.12.2017 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 22.01.2018 |
Referierte Publikation: | Nein |