| 连铸坯凝固偏析和高强热轧盘条的组织遗传性 |
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| 引用本文： | 黄贞益,陈光,牛亚然,王光朋,黄一新,刘文学. 连铸坯凝固偏析和高强热轧盘条的组织遗传性[J]. 钢铁研究学报, 2007, 19(1): 44-0 |
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| 作者姓名： | 黄贞益 陈光 牛亚然 王光朋 黄一新 刘文学 |
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| 作者单位： | 南京理工大学材料科学与工程系,江苏,南京,210094;安徽工业大学材料科学与工程学院,安徽,马鞍山,243002;安徽工业大学金属材料与加工重点实验室,安徽,马鞍山,243002;南京理工大学材料科学与工程系,江苏,南京,210094;安徽工业大学材料科学与工程学院,安徽,马鞍山,243002;安徽工业大学金属材料与加工重点实验室,安徽,马鞍山,243002;南京钢铁有限集团公司技术中心,江苏,南京,210035 |
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| 基金项目： | 安徽省教育厅自然科学基金 |
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| 摘 要： | 通过对热轧盘条和连铸坯光学显微镜、扫描电镜观察和能谱分析以及化学成分检验，研究了高碳热轧盘条组织与连铸坯凝固偏析的关系。结果表明：碳、锰严重偏析是导致高强度预应力盘条中偏析带形成的主要原因。偏析带组织为非索氏体，其强度高，塑性差，在轧制过程中易产生微裂纹和孔洞；连铸坯的偏析会直接遗传给热轧盘条，严重影响热轧盘条的组织和性能。因此，针对连铸坯偏析的遗传性，制定了改进措施，经生产证明其效果显著。
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| 关 键 词： | 热轧盘条 偏析 连铸坯 遗传 |
| 文章编号： | 1001-0963(2007)01-0044-04 |
| 收稿时间： | 2006-07-04 |
Solidification Segregation of Continuous Cast Steel Billets and Structure Heredity of High Strength Hot Rolled Rods |
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| HUANG Zhen-yi,CHEN Guang,NIU Ya-ran,WANG Guang-peng,HUANG Yi-xin,LIU Wen-xue. Solidification Segregation of Continuous Cast Steel Billets and Structure Heredity of High Strength Hot Rolled Rods[J]. Journal of Iron and Steel Research, 2007, 19(1): 44-0 |
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| Authors: | HUANG Zhen-yi CHEN Guang NIU Ya-ran WANG Guang-peng HUANG Yi-xin LIU Wen-xue |
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| Affiliation: | (1. Department of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China;2. School of Material Science and Engineering, Anhui University of Technology, Ma??anshan, 243002, Anhui, China;3. Technological Center, Nanjing Iron and Steel Group Co Ltd, Nanjing 210035, Jiangsu, China; 4. The Key Lab of Material and Processing, Anhui University of Technology, Ma??anshan 243002, Anhui, China) |
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| Abstract: | The relationship between the element segregation of high carbon and high strength hot rolled rods and solidification structure is studied by SEM observation and chemical analysis. The results show that the formation of segregation band is mainly caused by serious segregation of C and Mn the segregation band is not sorbitie structure and has high strength and low plasticity. There are microeraek and mierohole in them. The radical cause is serious segregation of continuous east steel billets. The hot rods inherit segregation of continuous cast steel billets directly and the segregation greatly influences structure and property of hot rolled rods. According to heredity of segregation of continuous east steel billets, effective measures have been taken against segregation. |
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| Keywords: | hot rod segregation continuous cast steel billet heredity |
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