The Ferrite Rolling Techniques and Microscopic Structure of Ultra Low Carbon Steel

To address the characteristics of deformation behavior and flowing stress of ultra low carbon steel in the hot-strip mill processing,a set of simulations were performed with THERMECMASTOR-Z thermo dynamic simulator.Furthermore,the effects on the steel flowing stress and metallic structures resulted from different deformation temperatures,intervals and extend had been investigated by dual compressing experimental method.These data indicate that The flowing stress deformed during 800-900 ℃ tends to be the same level with the value at austenite deformation region.The accumulated strain at the Tth pass is 5.08 times as much as the designed strain when applying ferrite rolling techniques,which is preferred for refined crystallization.