Electron microscopy was used to study the fine structure of pearlite in U8 eutectoid C-steel, following additional annealing in the α state. It was established that dislocations with Burgers vectors of ½<111> or <100>, as well as dislocations with a Burgers vector of <110> (unusual in body-centered cubic crystals), were generated in pearlitic ferrite. Dislocation sub-grain boundaries were studied which were spatially oriented in the stress fields that were created by the end-faces of partially dissolved cementite lamellae. It was shown that, near to the boundaries of grains and pearlite colonies, ferrite regions were formed that were bounded by dislocation networks and could serve as nuclei for recrystallization that was caused by transformation-induced hardening.

Evolution of the Lamellar Pearlitic Structure upon Annealing of Carbon Steel - II. Dislocations in Pearlitic Ferrite. I.L.Yakovleva, L.E.Karkina, Y.V.Khlebnikova, V.M.Schastlivtsev: Physics of Metals and Metallography, 2001, 92[6], 610-22