谭利, 詹肇麟, 刘攀, et al. Behavior of Dynamic Recrystallization of Microalloying Non-Quenched and Non-Tempered Steel C38N2[J]. Special Steel, 2012, 33(4): 50-52.
谭利, 詹肇麟, 刘攀, et al. Behavior of Dynamic Recrystallization of Microalloying Non-Quenched and Non-Tempered Steel C38N2[J]. Special Steel, 2012, 33(4): 50-52.DOI:
According to the deformation characteristics of microalloying non-quenched and non-tempered steel during hot rolling process
the austenite dynamic recrystallization process of Nb-Ti-V non-quenched and non-tempered steel C38N2 (/%: 0. 40C
0. 52Si
1. 42Mn
0. 010P
0. 047S
0. 028V
0. 025Ti
0. 022Nb) in single pass compression with strain rate 0. 1 ~ 10 s~' and deformation 60% at 950 ~ 1 150 Y is studied by using Gleeble-3800 thermal simulation machine. The dynamic recrystallization state diagram and dynamic recrystallization grain size model for steel C38N2 are obtained by calculation. Results show that for steel C38N2 the higher deformation temperature and lower strain rate
the lower cumulative energy Q
d
to occur dynamic recrystallization and the more easily to carry out the dynamic recrystallization. The activation energy for Q