Determination of No-recrystallization Temperature for a Nb-bearing Steel

作     者：杨浩 周晓光 liu zhenyu wang guodong 

作者机构：State Key Laboratory of Rolling and AutomationNortheastern UniversityShenyang 110819China 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2016年第31卷第3期

页      面：644-647页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Funded by the National Natural Science Foundation of China(No.21004037) the Fundamental Research Funds for the Central Universities(No.N140704002) the Natural Science Foundation of Liaoning Province(No.2015020180) 

主　　题：Nb-bearing steel recrystallization no-recrystallization temperature deformation parameters 

摘      要：The recrystallization behavior of a Nb-bearing steel was investigated during multipass deformation under continuous cooling conditions. By a series of six-pass compression tests conducted on a thermomechanical simulator, the effect of deformation parameters, including strain, strain rate and interpass time, on the no-recrystallization temperature （T） was determined. The results show that T decreases with increasing strain and also decreases slightly with increasing strain rate. The strain has more appreciable influence on the T compared with strain rate. When the interpass time is less than 10 s, the T decreases with increasing interpass time. The mathematical model of T was established considering the effect of pass strain, strain rate and interpass time. The calculated results agreed well with the actual experimental value.