ժҪ By analysing the stepped test pieces with optical microscope, the influence of the Technological parameters including rolling temperature and reduction amount on the Austenitic recrystallization fraction of Nb content of 0.08�� steel deformed in high temperature processing was studied, and the deformed austenite recrystallization figures of the test steel were obtained. The result indicates when the reduction amount is 60%, the critical temperature of complete recrystallization is 1070�� and the borderline temperature of non recrystallization is 900��. In contrast with general HSLA steel, the recrystallization and non recrystallization temperatures are respectively 120�� and 100�� higher so the steel contenting high Nb has better hot processing performance because Nb has great function of holding back recrystallization.
Abstract��By analysing the stepped test pieces with optical microscope, the influence of the Technological parameters including rolling temperature and reduction amount on the Austenitic recrystallization fraction of Nb content of 0.08�� steel deformed in high temperature processing was studied, and the deformed austenite recrystallization figures of the test steel were obtained. The result indicates when the reduction amount is 60%, the critical temperature of complete recrystallization is 1070�� and the borderline temperature of non recrystallization is 900��. In contrast with general HSLA steel, the recrystallization and non recrystallization temperatures are respectively 120�� and 100�� higher so the steel contenting high Nb has better hot processing performance because Nb has great function of holding back recrystallization.
JIAO Duo-tian;CAI Qing-wu;WU Hui-bin;et al. Effect of Nb to Austenite Recrystallization in High Temperature Deformation Processing[J]. �й������ڿ���, 2010, 17(8): 39-44.
JIAO Duo-tian;CAI Qing-wu;WU Hui-bin;et al. Effect of Nb to Austenite Recrystallization in High Temperature Deformation Processing. Chinese Journal of Iron and Steel, 2010, 17(8): 39-44.
2010, Vol. 17 
