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The stacking fault and interfacial energies of three transformation- and twinning-induced plasticity steels (TRIP/TWIP) (Fe–22/25/28Mn–3Al–3Si wt.%) were determined by experimental and theoretical methods. Analysis of Shockley partial dislocation configurations in the three alloys using weak-beam dark-field transmission electron microscopy yielded stacking fault energy (SFE) values of 15±3, 21±3 and...
Since the stacking fault energy significantly influences the deformation mechanisms of Fe–Mn–Al–Si twinning-induced plasticity steels, two methods for its experimental determination by transmission electron microscopy of dislocations, namely the size of extended nodes and the separation of Shockley partials, were evaluated for an Fe–24.7Mn–2.66Al–2.92Si (wt.%) alloy. Measurement of partial dislocation...
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