Microstructure and properties of not-fully recrystallized IF steels

Intersittial free (IF) steels used to produce cold rolled sheets are known to be hyper-drawable after recrystallization by continuous annealing. This is reflected by a low proof stress, a high work-hardening coefficient and a high r-value. From an industrial point of view, it is also important now to know how these properties change if annealing does not lead to complete recrystallization.