Influences of Mn on Recrystallization Behavior and Annealing Texture Formation in Ultralow-carbon and Low-carbon Steels.

Abstract

The influences of Mnon the recrystallization behavior and the formation of recrystallization texture in Ti-added ultralow-C steels were investigated and comparedwith that of low-C Al-killed steels. In Ti-added ultralow-C steels, Mn does not influence the recovery, the nucleation and growth rate of recrystallization, or the recrystallization texture. On the other hand, in low-C Al-killed steel, Mn inhibits the recovery and retards the growth rate of recrystallized grains. Consequently, the development of ND// 11 > is impaired, and the intensity of ND// 1 0> increases after recrystallization. The differences in recrystallization behavior and annealing texture formation betweenthe two kinds of steel were discuss~d from the viewpoint of the roles of precipitates and solute Mn. It was determined that Mn-Ccomplex is the main reason for these d ifferences.