利用热机械模拟器 (Gleeble15 0 0 )模拟了热轧双相不锈钢的控轧过程。研究表明 ,细化的显微组织和机械性能取决于精轧温度 ,即临界区的热处理温度。采用各种方法测量了含铌钢的奥氏体再结晶特性和 γ/ α转变温度。主要研究结果如下 :由于增加了铁素体的形核点和促进 γ/ α转 Thermo-mechanical simulator (Gleeble15 0 0) was used to simulate the rolling process of hot-rolled duplex stainless steel. Studies have shown that the refined microstructure and mechanical properties depend on the finishing temperature, ie the critical heat treatment temperature. Various methods were used to measure austenite recrystallization and γ / α transformation temperature of Nb-bearing steels. The main findings are as follows: due to the increase of ferrite nucleation sites and promote γ / α turn