| Austenite Recrystallization and Controlled Rolling of Low Carbon Steels |
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| 作者姓名： | DU Lin-xiu ZHANG Zhong-ping SHE Guang-fu LIU Xiang-hua WANG Guo-dong |
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| 作者单位： | State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, Liaoning, China |
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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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中国科学院资助项目 |
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| 摘 要： | The dynamic recrystallization and static recrystallization in a low carbon steel were investigated through single-pass and double-pass experiments. The results indicate that as the deformation temperature increases and the strain rate decreases, the shape of the stress-strain curve is changed from dynamic recovery shape to dynamic recrystallization shape. The austenite could not recrystallize within a few seconds after deformation at temperature below 900 ℃. According to the change in microstructure during deformation, the controlled rolling of low carbon steel can be divided into four stages： dynamic recrystallization, dynamic recovery, strain-induced ferrite transformation, and rolling in two-phase region. According to the microstructure after deformation, the controlled rolling of low carbon steel can be divided into five regions： non-recrystallized austenite, partly-recrystallized austenite, fully-recrystallized austenite, austenite to ferrite transformation, and dual phase.
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| 关 键 词： | 再结晶 低碳钢 奥氏体 控制轧制 |
| 修稿时间： | 2005-06-09 |
Austenite Recrystallization and Controlled Rolling of Low Carbon Steels |
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| DU Lin-xiu ZHANG Zhong-ping SHE Guang-fu LIU Xiang-hua WANG Guo-dong.Austenite Recrystallization and Controlled Rolling of Low Carbon Steels[J].Journal of Iron and Steel Research,2006,13(3):31-35,50. |
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| Authors: | DU Lin-xiu ZHANG Zhong-ping SHE Guang-fu LIU Xiang-hua WANG Guo-dong |
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| Affiliation: | 1. Institute of Advanced Manufacturing Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Changzhou 213164, Jiangsu, China;2. Key Laboratory of Metallurgical Equipment and Control Technology, Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China;3. Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China;1. State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China;2. Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC 27695, USA;3. Nano Structural Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China |
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| Abstract: | The dynamic recrystallization and static recrystallization in a low carbon steel were investigated through single-pass and double-pass experiments. The results indicate that as the deformation temperature increases and the strain rate decreases, the shape of the stress-strain curve is changed from dynamic recovery shape to dynamic recrystallization shape. The austenite could not recrystallize within a few seconds after deformation at temperature below 900 ℃. According to the change in microstructure during deformation, the controlled rolling of low carbon steel can be divided into four stages: dynamic recrystallization, dynamic recovery, strain-induced ferrite transformation, and rolling in two-phase region. According to the microstructure after deformation, the controlled rolling of low carbon steel can be divided into five regions: non-recrystallized austenite, partly-recrystallized austenite, fully-recrystallized austenite, austenite to ferrite transformation, and dual phase. |
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| Keywords: | recrystallization low carbon steel austenite strain-induced transformation controlled rolling |
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