Annealing behaviour of cold rolled low carbon steels

AbstractThe recovery, recrystallization, and grain growth during annealing of low-carbon steels (high purity and commercial purity) following 80% cold rolling have been investigated. The relationship between the formation of recrystallization texture and the substructure developed during deformation and recovery is examined in this paper. The elastic stored energy is orientation dependent and the sequence estimated from a Fourier analysis of X-ray line broadening is V {110} > V {100} > V {111} for commercial purity steel and V {110} > V {111} > V {100} for high purity steel. The difference in the sequences may be connected with the distribution of dislocations between the cell walls and the inside of the cells. In high purity steel the high energy components recover rapidly, the {110} and {111} components strengthen, and the {100} component weakens during primary recrystallization and grain growth. In commercial purity steel the lowest energy {111} component recovers most rapidly. The textural changes dur...