1992 Volume 32 Issue 3 Pages 368-376
The static recrystallization characteristics (grain size, kinetics) have been established for Ti-V-(Nb) austenites and used as the basis for a theoretical evaluation of microstructural evolution during hot rolling of plate. In this context, particular attention has been focussed on so-called recrystallization controlled rolling, whereby a fine as-rolled ferrite garin size is obtained via transformation from an austenite which has been substantially grain refined via static recrystallization. The model is shown to forecast a behaviour which is in acceptable accord with practical plate-rolling experience. Furthermore, the rolling model has been used in a systematic theoretical investigation of the effect of principal rolling variables on the degree of microstructural refinement during processing of Ti-V-(Nb) steels via recrystallization controlled rolling.
