Hot Rolling vs. Forging: Newly Developed Fe-Al-O Based OPH Alloy

Two oxide precipitation hardened (OPH) Fe-Al-O-based steels were prepared by mechanical alloying. In addition to the variant using yttria nano-precipitates improve properties, a only alumina precipitates for strengthening was also prepared. Therefore, more economically acceptable of these developed. Hot consolidation is significant production step achieving required properties. performed either hot rolling or forging. The heat treatment subsequently on both variants (0.85Fe–0.11Al–0.03Y2O3–0.01Y and 0.87Fe–0.11Al–0.02O2) alloys support secondary recrystallization. paper describes influence method grain size, material recrystallization, difference in reflected size after treatment, where consolidated reached almost 200 ?m, while forging maximum around 30 ?m. A higher ultimate tensile strength achieved with forged states, without treatment.