The Recrystallization Behaviour of Nb Microalloyed Steels
The deformation and recrystallization behaviour of a range of Nb microalloyed steels has been studied using hot torsion. This work focuses on the change from strain dependent to strain independent recrystallization behaviour as a function of the alloy content, initial microstructure and deformation conditions. It is found that there is a complex interaction between deformation, recrystallization and strain induced precipitation, which has significant implications for controlled rolling in hot strip and plate mills. The data also revealed that the pre-existing precipitates did not influence the behaviour of post deformation softening.
Young Won Chang, Nack J. Kim and Chong Soo Lee
H. Beladi and P. D. Hodgson, "The Recrystallization Behaviour of Nb Microalloyed Steels", Materials Science Forum, Vols. 561-565, pp. 25-28, 2007