Single pass reduction deformation experiment of a Ti-IF (interstitial atom free) steel - 0. 009C
0. 017Si
0. 13Mn
0. 012P
0. 013S
0. 05Ti
0. 025Als with deformation rate 0. 1
1 and 20 s
-1
at 750 °C and 850 °C has been carried out by Thermecmastor-Z thermal simulation machine. The curves of work hardening rate - strain for the Ti-IF steel
the dynamic recrystallization diagram and the volume fraction equation of dynamic recrystallization were obtained. Test results show that for the stress-strain curves with no obvious peak strain
it is a available to use work hardening rate method to determine peak strain and stable strain.