By changing the test temperature, an austenitic Fe–Mn–Al–Si alloy exhibited either ε-martensite transformation or mechanical twinning during straining. In order to understand the nucleation and growth mechanisms involved in both phenomena, defects and particularly stacking faults, were characterized by transmission electron microscopy. It was observed that the character of the stacking faults also changed (from extrinsic to intrinsic) together with the temperature and the activated mode of plasticity.

Is There a Relationship Between the Stacking Fault Character and the Activated Mode of Plasticity of Fe–Mn-Based Austenitic Steels? H.Idrissi, L.Ryelandt, M.Veron, D.Schryvers, P.J.Jacques: Scripta Materialia, 2009, 60[11], 941-4