| 含钛低碳钢凝固过程中氧化钛的析出和长大 |
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| 引用本文： | 王明林,成国光,杨新娥,赵沛,仇圣桃,干勇.含钛低碳钢凝固过程中氧化钛的析出和长大[J].钢铁研究学报,2004,16(5):47-50. |
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| 作者姓名： | 王明林 成国光 杨新娥 赵沛 仇圣桃 干勇 |
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| 作者单位： | 钢铁研究总院连铸中心,北京,100081;北京科技大学冶金学院,北京,100083 |
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| 基金项目： | 国家新一代钢铁材料的重大基础研究(973)资助项目(J19980615511 3) |
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| 摘 要： | 根据凝固过程中溶质元素偏析和扩散的基本规律，建立了凝固过程中氧化钛的长大模型。计算结果表明，冷却速率对凝固过程中氧化钛的析出和长大有重要影响：冷却速率越小，氧化钛长得越大。凝固前初始氧化钛越小，在凝固过程中氧化钛越容易长大。此外，可以根据冷却速率和凝固后氧化钛的尺寸判断氧化钛是凝固前形成的一次氧化物还是凝固过程中产生的二次氧化物。
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| 关 键 词： | 低碳钢 凝固 氧化钛 析出 长大 |
| 文章编号： | 1001-0963(2004)05-0047-04 |
| 修稿时间： | 2002年12月6日 |
Precipitation and Growth of Titanium Oxide during Solidification of Low Carbon Steel with Titanium |
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| WANG Ming-lin,CHENG Guo-guang,YANG Xin-e,ZHAO Pei,QIU Sheng-tao,GAN Yong.Precipitation and Growth of Titanium Oxide during Solidification of Low Carbon Steel with Titanium[J].Journal of Iron and Steel Research,2004,16(5):47-50. |
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| Authors: | WANG Ming-lin CHENG Guo-guang YANG Xin-e ZHAO Pei QIU Sheng-tao GAN Yong |
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| Affiliation: | WANG Ming-lin~1,CHENG Guo-guang~2,YANG Xin-e~2,ZHAO Pei~1,QIU Sheng-tao~1,GAN Yong~1 |
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| Abstract: | The titamium oxide growth model during solidification is established according to the basic rules of segregation and diffusion. It is found that the cooling rate has great effect on oxide precipitation and growth. The oxide growth in diameter during solidification is larger when the oxide size before solidification and cooling rate during solidification are smaller. A useful method to distinguish the categories of titanium oxides is found according to their diameter and cooling rates. |
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| Keywords: | low carbon steel solidification Ti_2O_3 precipitation growth |
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