基于DSCCR生产工艺的终轧温度对轧制过程中低碳钢组织与性能影响分析
TG335.11; 基于东华连铸连轧生产线(Donghua steel continuous casting rolling,DSCCR)分别进行终轧温度为880,820℃和780℃的热轧实验,研究终轧温度对低碳钢组织和性能的影响.采用光学显微镜(optical microscope,OM)、扫描电子显微镜(scanning electron microscope,SEM)、电子背散射衍射(electron backscatter diffraction,EBSD)技术等表征手段观察分析了不同终轧温度下热轧带钢的微观组织,同时对热轧带钢的拉伸力学性能进行测试和分析,对比分析不同终轧温度条件下热...
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| Published in | 材料工程 Vol. 51; no. 12; pp. 113 - 122 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
华北理工大学冶金与能源学院,河北唐山 063210%北京科技大学钢铁共性技术协同创新中心,北京100083%北京科技大学材料科学与工程学院,北京100083
01.12.2023
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-4381 |
| DOI | 10.11868/j.issn.1001-4381.2022.000041 |
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| Abstract | TG335.11; 基于东华连铸连轧生产线(Donghua steel continuous casting rolling,DSCCR)分别进行终轧温度为880,820℃和780℃的热轧实验,研究终轧温度对低碳钢组织和性能的影响.采用光学显微镜(optical microscope,OM)、扫描电子显微镜(scanning electron microscope,SEM)、电子背散射衍射(electron backscatter diffraction,EBSD)技术等表征手段观察分析了不同终轧温度下热轧带钢的微观组织,同时对热轧带钢的拉伸力学性能进行测试和分析,对比分析不同终轧温度条件下热轧带钢的屈服强度、抗拉强度和伸长率的变化情况.此外,还对不同终轧温度下热轧带钢的氧化铁皮厚度进行测定.结果表明:随着终轧温度的降低,带钢屈强比及伸长率都降低,屈强比由880℃时的0.8～0.81降低至780℃时的0.75～0.79,伸长率由880℃时的40％下降到780℃时的27％,应变硬化指数n值也从880℃时的0.22下降到780℃时的0.17;同时,对不同终轧温度下热轧带钢氧化铁皮进行观察分析,随着终轧温度的降低,氧化铁皮厚度减小,氧化铁皮厚度由880℃时的10.2μm下降至780℃时的8.8μm,降幅达13.7％,氧化铁皮的降低可提高后续酸洗效率,降低酸洗消耗. |
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| AbstractList | TG335.11; 基于东华连铸连轧生产线(Donghua steel continuous casting rolling,DSCCR)分别进行终轧温度为880,820℃和780℃的热轧实验,研究终轧温度对低碳钢组织和性能的影响.采用光学显微镜(optical microscope,OM)、扫描电子显微镜(scanning electron microscope,SEM)、电子背散射衍射(electron backscatter diffraction,EBSD)技术等表征手段观察分析了不同终轧温度下热轧带钢的微观组织,同时对热轧带钢的拉伸力学性能进行测试和分析,对比分析不同终轧温度条件下热轧带钢的屈服强度、抗拉强度和伸长率的变化情况.此外,还对不同终轧温度下热轧带钢的氧化铁皮厚度进行测定.结果表明:随着终轧温度的降低,带钢屈强比及伸长率都降低,屈强比由880℃时的0.8～0.81降低至780℃时的0.75～0.79,伸长率由880℃时的40％下降到780℃时的27％,应变硬化指数n值也从880℃时的0.22下降到780℃时的0.17;同时,对不同终轧温度下热轧带钢氧化铁皮进行观察分析,随着终轧温度的降低,氧化铁皮厚度减小,氧化铁皮厚度由880℃时的10.2μm下降至780℃时的8.8μm,降幅达13.7％,氧化铁皮的降低可提高后续酸洗效率,降低酸洗消耗. |
| Author | 梁晓慧 田鹏 赵志鹏 王书桓 李朝阳 康永林 |
| AuthorAffiliation | 华北理工大学冶金与能源学院,河北唐山 063210%北京科技大学钢铁共性技术协同创新中心,北京100083%北京科技大学材料科学与工程学院,北京100083 |
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| Author_FL | ZHAO Zhipeng KANG Yonglin LI Chaoyang WANG Shuhuan LIANG Xiaohui TIAN Peng |
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| DocumentTitle_FL | Effect of finish rolling temperature on microstructure and properties of low carbon steel based on DSCCR production process |
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| Keywords | microstructure 微观组织 低碳钢 终轧温度 iron oxide scale DSCCR 氧化铁皮 low carbon steel finish rolling temperature |
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| Publisher | 华北理工大学冶金与能源学院,河北唐山 063210%北京科技大学钢铁共性技术协同创新中心,北京100083%北京科技大学材料科学与工程学院,北京100083 |
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| Title | 基于DSCCR生产工艺的终轧温度对轧制过程中低碳钢组织与性能影响分析 |
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