摘要
采用热/力模拟实验方法对热轧态00Cr22Ni5Mo3N双相不锈钢(DSS)进行低应变高温平面变形试验。结果表明,在应变速率分别为0.1s-1和2s-1,变形温度900～1200℃条件下,双相不锈钢的峰值变形抗力随变形温度升高而降低,随应变速率的增大而增加,在各变形温度下,其差值达到30～80MPa。在1000～1200℃变形温度区间,铁素体组织发生完全的动态回复以及再结晶软化,部分奥氏体主要通过孪生变形及亚晶的形成进行软化。
The hot deformation behavior of hot-rolled 00Cr22Ni5Mo3N duplex stainless steel（DSS） is investigated by the use of thermo-mechanical simulator etc.Test results show that with strain rate 0.1s-1 and 2s-1 at 900（1200℃,the peak resistance to deformation of the dual phase steel is abruptly decreased with the increase of the deformation temperature and as the stain rate is increased from 0.1s-1 to 2s-1,the peak stress of dual phase steel is increased by 30～80MPa.With deformation at 1000（1200℃,the recovery and recrystallization of ferrite structure in steel occur where austenite is partially softened by deformation twin and formation of subgrain.
出处
《有色金属》
CAS
CSCD
北大核心
2011年第2期68-71,共4页
Nonferrous Metals
基金
兰州理工大学特色研究方向梯队资助项目(T200304))
