| 低碳含铌钢粗大奥氏体的静态再结晶 |
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| 引用本文： | 薛春霞,张玲,杨王玥,孙祖庆.低碳含铌钢粗大奥氏体的静态再结晶[J].北京科技大学学报,2008,30(4):374-378. |
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| 作者姓名： | 薛春霞 张玲 杨王玥 孙祖庆 |
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| 作者单位： | 1. 北京科技大学新金属材料国家重点实验室,北京,100083
2. 北京科技大学材料科学与工程学院,北京,100083 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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国家自然科学基金 |
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| 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.
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| 关 键 词： | 含铌钢 薄板坯连铸连轧 奥氏体 静态再结晶 |
| 修稿时间： | 2007年2月24日 |
Static recrystallization in low-carbon niobium-microalloyed steels with coarse austenite |
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| XUE Chunxia,ZHANG Ling,YANG Wangyue,SUN Zuqing.Static recrystallization in low-carbon niobium-microalloyed steels with coarse austenite[J].Journal of University of Science and Technology Beijing,2008,30(4):374-378. |
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| Authors: | XUE Chunxia ZHANG Ling YANG Wangyue SUN Zuqing |
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| Abstract: | 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 recrystallization was developed,which can provide theoretical guidance for designing the industrial rolling procedure. |
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| Keywords: | niobium-microalloyed steel thin slab casting and rolling austenite static recrystallization |
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