基于氧化物冶金技术的管线钢凝固脱氧热力学

特殊钢 ›› 2007, Vol. 28 ›› Issue (4): 4-6.

基于氧化物冶金技术的管线钢凝固脱氧热力学

薛正良¹ 齐江华¹, 赵栋楠¹, 程常桂¹, 吴杰², 郭斌²

1钢铁冶金及资源利用省部共建教育部重点实验室(武汉科技大学)，武汉430081；
2武汉钢铁(集团)公司技术中心，武汉430080

收稿日期:2007-01-18 出版日期:2007-07-01 发布日期:2023-01-03
作者简介:薛正良(1962-),男，博士，教授，冶金工程系主任，钢佚冶金及资源利用省部共建教育部重点实验室副主任，纯净钢冶炼理论与工艺、新钢种开发和直接还原新技术。
基金资助:
湖北省自然科学基金重大项目(2006ABD006)和湖北省高等学校优秀中青年科技创新团队计划 (T200609)资助项目

Thermodynamics of Deoxidization of Pipeline Steel Based on Technology of Oxide Metallurgy

Xue Zhengliang¹, Qi Jianghua¹, Zhao Dongnan¹, Cheng Changgui¹, Wu Jie² , Guo Bin²

1 Key Lab for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081.
2 Technical Center, Wuhan Iron and Steel (Group) Co, Wuhan 430080

Received:2007-01-18 Published:2007-07-01 Online:2023-01-03

摘要/Abstract

摘要： 通过X100管线钢(%:0.03～0.05C、1.70～1.90Mn、0.15～0.25Si、≤0.001S、≤0.002P)凝固过程脱氧热力学研究,确定了在凝固过程中的固液两相区析出Ti₂O₃夹杂的最佳钢液组成。研究表明,为使X100管线钢在凝固前沿的固液两相区中析出细小的Ti₂O₃夹杂颗粒,关键在于控制钢液中钛含量≤0.01%,铝含量≤0.002%,氧含量≤0.001%,氮含量≤0.004%。

Abstract: The optimum conditions of molten steel to precipitate Ti₂O₃ inclusion in solid-liquid dual phase region during solidification are obtained by study on thermodynamics of deoxidization of pipeline steel X100 (0. 03 ~0. 05C, 1.70 ~ 1. 90Mn, 0. 15 ~0. 25Si, ≤0. 001S, ≤0. 002P) during solidification. The results showed that control of titanium content in molten steel ≤0. 01% , aluminum content ≤0. 002% , oxygen content ≤0. 001% and nitrogen content ≤0. 004% were key factors to promote precipitation of fine Ti₂O₃ particles at front of solidification in solid-liquid dual phase region of pipeline steel X100.

薛正良, 齐江华, 赵栋楠, 程常桂, 吴杰, 郭斌. 基于氧化物冶金技术的管线钢凝固脱氧热力学[J]. 特殊钢, 2007, 28(4): 4-6.

Xue Zhengliang, Qi Jianghua, Zhao Dongnan, Cheng Changgui, Wu Jie, Guo Bin. Thermodynamics of Deoxidization of Pipeline Steel Based on Technology of Oxide Metallurgy[J]. Special Steel, 2007, 28(4): 4-6.

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