Dislocations in deformed and annealed Fe-3 wt.% Si single crystals

Changes of the dislocation arrangement during isothermal anneal in the temperature range 593 K–823 K of Fe-3 wt.% Si single crystals previously deformed 40% in tension are studied by TEM. From the observed decrease in dislocation densities it is concluded that bundles of dislocations which are the main component of the dislocation arrangement consist predominantly of edge dipoles of primary dislocations. The maximum height of the dipoles is about 16 nm.