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This paper investigated the microstructure evolution of cold-rolled Fe-30Mn-9Al-1C steel at various heat treatment temperatures and found that the β-Mn phase could rapidly precipitate at moderate temperatures. A method of quasi in situ observation was used to observe the precipitation of the intergranular and intragranular β-Mn phase. A transmission electron microscopy analysis showed that the transition...
The effect of pre-deformation on the precipitation behavior of the β-Mn phase while aging at 600 °C was investigated in Fe–30Mn–9Al–1C (wt pct) steel. The accelerated precipitation and growth of the β-Mn phase along the grain boundaries and deformation bands are ascribed to variations in the microstructure and storage energy. The precipitation kinetics of the β-Mn phase can be restrained using the...
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