Abstract
Interphase boundary structures were compared between lath-shaped bainitic ferrite in Fe–0.6C–2Si–1Mn and lath martensite in Fe–20Ni–5.5Mn. Both laths exhibit the macroscopic habit plane scattered around (1 2 1)γ which contains monoatomic steps with the (1 1 1) γ∥(0 1 1) α terrace (transformation dislocations/structural ledges). Similar accommodation dislocations, with pure-screw characters on (1 1 1) γ∥(0 1 1) α , were observed in both cases.
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