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The tensile properties, microstructure characteristics, and fracture mechanisms at 500 °C of Fe–Mn–Al–C–Mo–V steel processed by hot rolling (HR) and warm rolling (WR) are investigated. The HR steel obtained by rolling 1150 °C, consisting mainly of equiaxed austenite and banded ferrite, exhibits a tensile strength of 695 MPa, accompanied by an elongation of ≈45.5%. In contrast, the WR steel processed...
A novel low‐density dispersion‐strengthened Fe–18%Mn–8%Al–0.8%C (wt%) steel exhibiting superior high‐temperature strength at 700–900 °C, is developed. The finely dispersed ferritic grains that form near the grain boundaries of the austenite phase provide significant strengthening by pinning the dislocations and enable high microstructural stability by restricting the dynamic recovery/recrystallization...
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