摘要
利用Gleeble1500热模拟机研究了Nb质量分数0.089%的高温热机械轧制钢(4#Nb钢)在粗大奥氏体晶粒条件下的静态再结晶规律.作为对比,同时研究了一种铌质量分数0.049%的低碳含铌钢(2#Nb钢)的静态再结晶规律.实验结果表明:4#Nb钢的静态再结晶动力学过程比2#Nb钢慢,在高温时差异较小;随着形变温度的降低,4#Nb钢的静态再结晶动力学被极大地延迟.根据实验数据建立了静态再结晶模型,该模型对轧制工艺的制定有一定的指导意义.
The static recrystallization behavior of a high temperature processing （HTP） steel containing 0.08 % Nb （4^#Nb steel） with coarse austenite was investigated by using a thermo-mechanical simulator Gleeble 1500. A low carbon steel containing 0. 049 % Nb （2^# Nb steel） was also studied as a comparison. The results indicate that the static recrystallization kinetics process of 4^# Nb steel is slightly slower than that of 2^# Nb steel at high deformation temperature. The recrystallization of 4^# Nb steel is greatly retarded with decreasing deformation temperature. According to experimental data, a mathematical model of static recrystaUization was developed, which can provide theoretical guidance for designing the industrial rolling procedure.
作者
薛春霞
张玲
杨王玥
孙祖庆
Xue, Chunxia[1]; Zhang, Ling[2]; Yang, Wangyue[2]; Sun, Zuqing[1]
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2008年第4期374-378,共5页
Journal of University of Science and Technology Beijing
基金
国家高技术研究发展计划资助项目(No.2007AA03Z501)
国家自然科学基金资助项目(No.50774008)
关键词
含铌钢
薄板坯连铸连轧
奥氏体
静态再结晶
niobium-microalloyed steel
thin slab casting and rolling
austenite
static recrystallization
