Details

Autor(en) / Beteiligte

• Oono-Hori, Naoko
• Andria, Angela Dannea Anak
• Wu, Xiangyu
• Yu, Hao
• Kasada, Ryuta

Titel

Evaluation of the strength of FeCrAl alloy/surface Oxide film interface by micro double-notch shear test

Ist Teil von

• Fusion engineering and design, 2024-04, Vol.201, p.114243, Article 114243

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2024

Quelle

Elsevier ScienceDirect Journals

Beschreibungen/Notizen

• •FeCrAl alloys with self-formed alumina films for liquid metal cooling blankets.•Interfacial shear strength was measured directly using micropillar technology.•The rupture strength of FeCrAl-ODS was higher than that of APMT.•This is an effect of the interface roughness rather than the oxide film thickness. The shear strength of the film formed by pre-oxidation treatment of FeCrAl(-ODS) alloys, likely to be used as pipework material for liquid LiPb breeder blankets, was evaluated by micro double-notch shear testing. Fracture generally occurred at the interface between the oxide film and the alloy substrate, but the pop- in the stress-strain curves was difficult to interpret, so all the test results in this study were compared to the full rupture strength. The rupture strength appears to be a function of the nature of the interface between the film and the alloy rather than the thickness of the film; for APMT and FeCrAl-ODS, the rupture strength was greater for FeCrAl-ODS.