Identification and 3D reconstruction of Cr5S6 precipitates along grain boundaries in Fe13Cr
- Metal sulfide grain boundary precipitates of a ferrous model alloy with 13 wt.% chromium formed at 650°C under a gas atmosphere containing 0.5% SO2 and 99.5% Ar were investigated after ageing for 3 h, 6 h, and 12 h. The precipitates formed along grain boundaries were identified as Cr5S6 using energy-dispersive x-ray spectroscopy in transmission electron microscopy and electron backscatter diffraction analysis. Serial focused ion beam slicing was conducted followed by three-dimensional reconstruction to determine the number, size, and penetration depth of the precipitates evolved at the different time steps. There was a linear increase in the number of precipitates with time, while their average size increased only for the initial aging time but became constant after 6 h. Based on these results, a model for grain boundary sulfidation of ferritic alloys is discussed.
| Autor*innen: | Kathrin Nützmann, Nicole Wollschläger, Christian Rockenhäuser, Axel KranzmannORCiD, Christiane Stephan-ScherbORCiD |
|---|---|
| Dokumenttyp: | Zeitschriftenartikel |
| Veröffentlichungsform: | Verlagsliteratur |
| Sprache: | Englisch |
| Titel des übergeordneten Werkes (Englisch): | JOM |
| Jahr der Erstveröffentlichung: | 2018 |
| Herausgeber (Institution): | The Minerals, Metals & Materials Society |
| Verlag: | Springer Science + Business Media |
| Verlagsort: | New York, NY |
| Jahrgang/Band: | 70 |
| Ausgabe/Heft: | 8 |
| Erste Seite: | 1478 |
| Letzte Seite: | 1483 |
| DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten |
| Freie Schlagwörter: | FIB Tomography; Grain Boundary Corrosion; Internal Sulfidation |
| DOI: | 10.1007/s11837-018-2940-y |
| ISSN: | 1047-4838 |
| ISSN: | 1543-1851 |
| Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
| Datum der Freischaltung: | 04.06.2018 |
| Referierte Publikation: | Ja |
| Datum der Eintragung als referierte Publikation: | 17.08.2018 |

