82B连铸坯V型偏析现象及控制

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82B连铸坯V型偏析现象及控制

黄拓, 马忠伟, 任金朝, 王明林, 张慧

文章导航 > 钢铁钒钛 > 2014 > 35(6): 108-112

黄拓, 马忠伟, 任金朝, 王明林, 张慧. 82B连铸坯V型偏析现象及控制[J]. 钢铁钒钛, 2014, 35(6): 108-112. doi: 10.7513/j.issn.1004-7638.2014.06.021

引用本文:

黄拓, 马忠伟, 任金朝, 王明林, 张慧. 82B连铸坯V型偏析现象及控制[J]. 钢铁钒钛, 2014, 35(6): 108-112. doi: 10.7513/j.issn.1004-7638.2014.06.021

Huang Tuo, Ma Zhongwei, Ren Jinchao, Wang Minglin, Zhang Hui. Phenomenon and Control Measurements of V-shape Segregation in 82B Steel Billet[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(6): 108-112. doi: 10.7513/j.issn.1004-7638.2014.06.021

Citation:

Huang Tuo, Ma Zhongwei, Ren Jinchao, Wang Minglin, Zhang Hui. Phenomenon and Control Measurements of V-shape Segregation in 82B Steel Billet[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(6): 108-112. doi: 10.7513/j.issn.1004-7638.2014.06.021

黄拓, 马忠伟, 任金朝, 王明林, 张慧. 82B连铸坯V型偏析现象及控制[J]. 钢铁钒钛, 2014, 35(6): 108-112. doi: 10.7513/j.issn.1004-7638.2014.06.021

引用本文:

黄拓, 马忠伟, 任金朝, 王明林, 张慧. 82B连铸坯V型偏析现象及控制[J]. 钢铁钒钛, 2014, 35(6): 108-112. doi: 10.7513/j.issn.1004-7638.2014.06.021

Huang Tuo, Ma Zhongwei, Ren Jinchao, Wang Minglin, Zhang Hui. Phenomenon and Control Measurements of V-shape Segregation in 82B Steel Billet[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(6): 108-112. doi: 10.7513/j.issn.1004-7638.2014.06.021

Citation:

Huang Tuo, Ma Zhongwei, Ren Jinchao, Wang Minglin, Zhang Hui. Phenomenon and Control Measurements of V-shape Segregation in 82B Steel Billet[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(6): 108-112. doi: 10.7513/j.issn.1004-7638.2014.06.021

82B连铸坯V型偏析现象及控制

doi: 10.7513/j.issn.1004-7638.2014.06.021

1. 钢铁研究总院连铸技术国家工程研究中心, 北京 100081;
2. 辽宁科技大学冶金与材料学院, 辽宁鞍山 114051

作者简介:
黄拓 (1989-), 男, 陕西西安人, 在读硕士, 主要从事连铸工艺技术、铸坯及铸锭凝固组织细化研究

中图分类号: TF777.4
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出版历程
- 收稿日期: 2013-12-26

Phenomenon and Control Measurements of V-shape Segregation in 82B Steel Billet

1. National Engineering and Research Center of Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, China;
2. University of Science and Technology Liaoning, Anshan 114051, Liaoning, China

摘要: 以国内某钢厂82B方坯连铸坯为研究对象,观察V型偏析在横、纵截面上的分布,并研究碳元素的中心偏析现象。结果表明:V型偏析产生于中心等轴晶区,在纵向上表现为多个V字上下嵌套、交织在一起,横向上表现为一组同心圆结构;通道区内碳元素偏析严重,是影响82B高碳钢线材质量的重要原因;V型偏析的产生与富集溶质液相的流动以及凝固组织有关,扩大等轴晶区、细化等轴晶粒有助于减轻V型偏析。
- 82B连铸坯 /
- V型偏析 /
- 等轴晶
Abstract: In this paper 82 B steel billet cast by a Chinese domestic steel plant had been investigated with regards to the distribution of V-shape segregation in transverse and longitudinal section,and center segre-gation of carbon as well.The results showed that V-shape segregation occurred in central equiaxed crystal zone,and carbon segregation was much serious in V-shaped channels;The generation of V-segregation is related with flow of solute enriched liquid and solidification structure.Both expanding equiaxed crystal zone and refining the equiaxed crystal zone are two effective ways to reduce V-segregation.
- 82B steel /
- V-segregation /
- equiaxed grain

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