Long-Term Oxidation Behavior of SOFC Interconnects Alloy ZMG232G10 for 40,000 Hours

Autor: Yamamura, Kazuhiro, Uehara, Toshihiro, Momono, Shogo, Fujii, Takahiro
Zdroj: ECS Transactions; July 2021, Vol. 103 Issue: 1 p2195-2204, 10p
Abstrakt: ZMGTM232G10 is Fe-Cr ferritic alloy, which has better oxidation resistance for SOFC interconnects. Oxidation behavior of ZMG232G10 was investigated in air at 750 and 850°C for 40,000 hours. Bulk specimens of ZMG232G10 showed stable oxidation behavior according to parabolic law. However, thinner specimens showed anomalous oxidation behavior for 40,000 hours at 850°C. Furthermore, ferrite to austenite phase transformation was observed in a part of specimens which was oxidized at 850°C. This unstable oxidation behavior resulted from Cr consumption in alloy matrix by oxidation.
Databáze: Supplemental Index