Research on Intercritical Rolling of 0.2C-1.5Si-1.5Mn TRIP Steels by Thermo-Mechanical Simulation
In order to simplify the production routine and to save cost of hot-rolled TRIP steels, the intercritical rolling process was investigated using thermo-mechanical simulation technology. Both 0.2C-1.5Mn-1.5Si and 0.2C-1.5Mn-1.5Si-0.5Cu TRIP steels were chosen so as to study the effect of 0.5 pct Cu addition on microstructure and retained austenite volume fraction of 0.2C-1.5Mn-1.5Si TRIP steel. It is found that grain size refinement happened during intercritical deformation, and multi-phase microstructure could be achieved after isothermal treatment, so intercritical annealing can be eliminated to avoid grain size coarse and to keep the refine grain size in intercritical-deformed TRIP steels.
Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim
Z. C. Wang et al., "Research on Intercritical Rolling of 0.2C-1.5Si-1.5Mn TRIP Steels by Thermo-Mechanical Simulation ", Key Engineering Materials, Vols. 297-300, pp. 1223-1228, 2005