| Surface Ferrite Grain Refinement and Mechanical Properties of Low Carbon Steel Plates |
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| 作者姓名： | FAN Jian-wen DAI Xiao-li XIE Rui-ping ZHANG Wei-xu WANG Zu-bin |
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| 作者单位： | [1]Shougang Research Institute of Technology, Shougang Group Corporation, Beijing 100041, China [2]Chinese Society for Metals, Beijing 100011, China |
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| 基金项目： | 北京市"科技新星"项目 |
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| 摘 要： | Considering the specialities of the steel plate production, the TMCP study has been carried out with Gleeble 2000 tester to explore the possibility of fine grained ferrite in the low carbon steel plates with the chemical composition of C 0.13--0.18, Si 0.12-0.18, Mn 0.50-0. 65, P 0. 010-0. 025, and S 0. 005-0. 028. The plates with thickness of 8. 7 mm in which the ferrite grain size is smaller than 8μm have been produced by special de- formation process in the laboratory. Furthermore, the trial production of special plain carbon steel plates of 16-25 mm in thickness and 2 000- 2 800 mm in width with fine grained ferrite has been successfully carried out in the Shougang Steel Plate Rolling Plant. The ferrite grain size is 5.5-7μm in the surface layers and 9.5-15μm in the central layer respectively. The yield strength is 320- 360 MPa, tensile strength is 440-520 MPa and the elongation is 25%- 34 %. It is very important for the rolling plants to improve the low carbon steel plates＇ mechanical properties. The results show that the ferrite grains in the surface layer can be refined effectively by the appropriate rolling process, and the strength can be also increased.
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| 关 键 词： | TMCP 铁素体 晶粒细化 低碳钢 机械性能 |
| 收稿时间： | 2005-12-28 |
Surface Ferrite Grain Refinement and Mechanical Properties of Low Carbon Steel Plates |
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| FAN Jian-wen DAI Xiao-li XIE Rui-ping ZHANG Wei-xu WANG Zu-bin.Surface Ferrite Grain Refinement and Mechanical Properties of Low Carbon Steel Plates[J].Journal of Iron and Steel Research,2006,13(4):35-39. |
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| Authors: | FAN Jian-wen DAI Xiao-li XIE Rui-ping ZHANG Wei-xu WANG Zu-bin |
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| Affiliation: | 1. Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, Fukuoka 819-0395, Japan;2. National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan;1. Department of Mechanical Engineering, Mookambigai College of Engineering, Pudukkottai, Tamilnadu 622502, India;2. Syed Ammal Engineering College, Ramanathapuram, Tamilnadu 623502, India;3. Department of Production Engineering, National Institute of Technology, Tiruchirappalli, Tamilnadu 620015, India;4. Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore |
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| Abstract: | Considering the specialities of the steel plate production, the TMCP study has been carried out with Gleeble 2000 tester to explore the possibility of fine grained ferrite in the low carbon steel plates with the chemical composition of C 0.13-0.18, Si 0.12-0.18, Mn 0.50-0.65, P 0.010-0.025, and S 0.005-0.028. The plates with thickness of 8.7 mm in which the ferrite grain size is smaller than 8 μm have been produced by special deformation process in the laboratory. Furthermore, the trial production of special plain carbon steel plates of 16-25 mm in thickness and 2 000-2 800 mm in width with fine grained ferrite has been successfully carried out in the Shougang Steel Plate Rolling Plant. The ferrite grain size is 5.5-7 μm in the surface layers and 9.5-15 μm in the central layer respectively. The yield strength is 320-360 MPa, tensile strength is 440-520 MPa and the elongation is 25%-34%. It is very important for the rolling plants to improve the low carbon steel plates′ mechanical properties. The results show that the ferrite grains in the surface layer can be refined effectively by the appropriate rolling process, and the strength can be also increased. |
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| Keywords: | TMCP fine grained ferrite plain low carbon steel plate mechanical property |
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