The hot ductility, full recrystallization temperature and final mechanical properties of 16% Cr ferritic stainless steel with ultra low carbon and nitrogen, contained with Ti and/or Nb elements were investigated. The results showed that with the increasing of strain rate and decreasing of deformation temperature during compression deformation, the deformation stress rose remarkably. However, the addition of Ti and Ni had no obvious effect on the deformation stress. The tensile strength and total elongation of three steels declined dramatically when the temperature went up to 1 350 °C. The alloy element of Ti, especially Nb could retard the recrystallization of steels. The addition of Ti and/or Nb could eliminate yield elongation and improve the r-value.%实验室研究了钛、铌对16％ Cr超低碳氮铁素体不锈钢的高温塑性、再结晶温度以及冷轧板力学性能的影响.结果表明,变形温度和应变速率对变形抗力的影响十分显著,而不同含量的钛、铌对钢的变形抗力影响很小.当变形温度达到1350℃时,三种成分钢的抗拉强度和塑性急剧下降.钛、铌的加入对钢板的完全再结晶温度有一定的影响,即加钛或加铌均延迟再结晶.不加钛、铌的钢在拉伸时有明显的屈服现象,且屈服强度较高,r值较低,而加钛或钛、铌复合加入的钢没有明显的屈服现象,r值较高均达1.50以上.
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