Microstructural stability of secondary phases in an ODS ferritic steel after thermal aging at 873 K

An oxide dispersion strengthened (ODS) steel with nominal composition Fe–14Cr–2W–0.4Ti–0.3Y₂O₃ (wt%) has been manufactured by mechanical alloying of pre-alloyed powders with nanosized Y₂O₃, compacted by hot isostatic pressing and hot cross rolled. In order to evaluate the long-term thermal...