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

薛正良; 齐江华; 赵栋楠; 程常桂; 吴杰; 郭斌

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

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- Thermodynamics of Deoxidization of Pipeline Steel Based on Technology of Oxide Metallurgy
- Special Steel Vol. 28, Issue 4, Pages: 4-6(2007)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：18 January 2007，
  
  Online First：03 January 2023，
  
  Published：03 January 2007
- 稿件说明：
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薛正良, 齐江华, 赵栋楠, et al. Thermodynamics of Deoxidization of Pipeline Steel Based on Technology of Oxide Metallurgy[J]. Special Steel, 2007, 28(4): 4-6.
DOI：

薛正良, 齐江华, 赵栋楠, et al. Thermodynamics of Deoxidization of Pipeline Steel Based on Technology of Oxide Metallurgy[J]. Special Steel, 2007, 28(4): 4-6. DOI：

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Ti

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Ti

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 Ti

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 Ti

particles at front of solidification in solid-liquid dual phase region of pipeline steel X100.

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