Ding, Kuan ; Duarte, Maria J. ; Shen, Xiao ; Zhang, Siyuan ; Li, Jiejie ; Kostka, Aleksander ; Bruder, Enrico ; Li, Jianjun ; Song, Wenwen ; Durst, Karsten ; Best, James P. ; Fang, Xufei (2023)
Microstructural and micromechanical characterization of intergranular
oxidation in Fe-15Cr alloy.
In: Corrosion Science, 225
doi: 10.1016/j.corsci.2023.111613
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Fe-Cr alloy has great potential as an interconnect material for SOFCs at temperatures up to 800 ◦C, with Cr providing excellent oxidation resistance through the formation of a protective chromium oxide layer. However, internal brittle oxides formed at grain boundaries (GBs) can lead to severe cracking and cause material failure. Here, we report the formation of internal GBs oxide in an Fe-15 wt%Cr alloy. We carried out microstructural and chemical characterization of the intergranular oxide and performed micromechanical testing and FEM simulation to study the fracture behavior at the GBs. Our findings provide insights for improving the oxidation resistance in the material design.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Ding, Kuan ; Duarte, Maria J. ; Shen, Xiao ; Zhang, Siyuan ; Li, Jiejie ; Kostka, Aleksander ; Bruder, Enrico ; Li, Jianjun ; Song, Wenwen ; Durst, Karsten ; Best, James P. ; Fang, Xufei |
| Art des Eintrags: | Bibliographie |
| Titel: | Microstructural and micromechanical characterization of intergranular oxidation in Fe-15Cr alloy |
| Sprache: | Englisch |
| Publikationsjahr: | 26 Oktober 2023 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Corrosion Science |
| Jahrgang/Volume einer Zeitschrift: | 225 |
| DOI: | 10.1016/j.corsci.2023.111613 |
| Kurzbeschreibung (Abstract): | Fe-Cr alloy has great potential as an interconnect material for SOFCs at temperatures up to 800 ◦C, with Cr providing excellent oxidation resistance through the formation of a protective chromium oxide layer. However, internal brittle oxides formed at grain boundaries (GBs) can lead to severe cracking and cause material failure. Here, we report the formation of internal GBs oxide in an Fe-15 wt%Cr alloy. We carried out microstructural and chemical characterization of the intergranular oxide and performed micromechanical testing and FEM simulation to study the fracture behavior at the GBs. Our findings provide insights for improving the oxidation resistance in the material design. |
| Freie Schlagworte: | Fe-Cr alloy, grain boundary oxidation, fracture, micromechanical testing |
| Zusätzliche Informationen: | Artikel-ID: 111613 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe |
| Hinterlegungsdatum: | 16 Nov 2023 06:50 |
| Letzte Änderung: | 16 Nov 2023 06:50 |
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