高碳钢试样在 Ｇｌｅｅｂｌｅ２０００ 试验机上进行高温多道次高变形速率的变形试验，高应变速率下的变形屈服应力服从 Ｚｅｎｅｒ Ｈｏｌｌｍ ａｎ 因子（ Ｚ＝ Ａσｎ ＝ εｅｘｐ（ Ｑ／ Ｒ Ｔ））的变化。高线预精轧时，发生道次间静态再结晶；而精轧时由于道次时间短，有道次应变积累现象，应变积累达到临界变形量后，引起动态再结晶发生。 High-carbon steel specimens were subjected to high temperature multi-pass high deformation rate deformation test on a Gleeble-2000 testing machine. The deformation yield stress under high strain rate obeys Zener Hollm an factor (Z = Aσn = εexp (Q / R T)) The change. During the high-line pre-finish rolling, static recrystallization occurs between the passes. However, during the finish rolling, the dynamic recrystallization occurs after the strain reaches the critical deformation because of the short pass time.