Static recrystallisation plays an important role in the design of rolling schedules for the controlled rolling of micrqalloyed steels. This softening mechanism has a significant effect on the hoi strength of austenite1 and also in the final microstructure, and hence in the final properties of,a hot rolled steel. -Additions of elements, like niobium, titanium, and vanadium, produce time delays in static recrystallisation. It is widely :ecognized that the retardation of auste,nite recrystallisation is due in part to solute drag but also 10 strain-induced precipitation (3. 4), the latter exerting usually the stronger effect.
展开▼
