Inhaltszusammenfassung

In order to reduce CO2 emissions, a change is currently taking place within the steel industry towards hydrogen-based steel production. For this purpose, the requirement profile for the refractory materials is thus being extended to include a resistance to hydrogen. The aim of this poster is to characterize the structural changes respectively the corrosion mechanism occurring in an Al2O3-SiO2 refractory material, which experienced a hydrogen induced attack. SEM techniques were applied and t...In order to reduce CO2 emissions, a change is currently taking place within the steel industry towards hydrogen-based steel production. For this purpose, the requirement profile for the refractory materials is thus being extended to include a resistance to hydrogen. The aim of this poster is to characterize the structural changes respectively the corrosion mechanism occurring in an Al2O3-SiO2 refractory material, which experienced a hydrogen induced attack. SEM techniques were applied and the results were verified with thermochemical calculations. First, a corrosion test was conducted. Therefore, the refractory material was exposed to 100 % H2 for 200 h at 1400°C. Subsequently, an elemental analysis by SEM of the hydrogen-induced corrosion zone of the refractory was performed. The corrosion mechanism was described by thermodynamic modeling using the software FactSage» weiterlesen» einklappen

Autoren

Klassifikation

DFG Fachgebiet:
4.32 - Materialwissenschaft

DDC Sachgruppe:
Ingenieurwissenschaften