Recrystallisation and Grain Growth in Batch Annealed Ti-IF Steels

Abstract

In order to optimize the batch annealing cycles and increase the productivity of this process, the impact of the chemical composition and the processing parameters on the recrystallisation and grain growth kinetics were investigated on different Ti IF steels. A simple model based on an Avrami formulation has been developed for the prediction of the recrystallisation kinetics.

Recrystallisation and Grain Growth in Batch Annealed Ti-IF Steels

“…This prediction joined with a thermal model will give a useful tool for the optimization of the batch annealing process. The characterization of the microstructure can then be completed by the prediction of the grain growth after recrystallisation and the final mechanical properties 4 .…”

Ferrite recrystallisation and characteristics of non-recrystallised ferrite grains in Ti added low carbon steels

“…The influence of Nb and/or Ti on the recrystallisation behaviour of ferrite in ultralow carbon steels has been well investigated. [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] On the other hand, the recrystallisation behaviour of ferrite during annealing in low carbon steels is sometimes more complicated than in IF steels. For example, the possibility has been raised that C-Ti and/or C-Mn dipole formation in hot rolled sheets inhibits recovery during annealing in Ti added low carbon steels.…”