| IF钢中Al_2O_3-TiN复合夹杂生成机理研究 |
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| 引用本文： | 王敏,包燕平,崔衡,吴华杰,吴维双.IF钢中Al_2O_3-TiN复合夹杂生成机理研究[J].钢铁研究学报,2010,22(7):29-29. |
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| 作者姓名： | 王敏 包燕平 崔衡 吴华杰 吴维双 |
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| 作者单位： | 北京科技大学冶金与生态工程学院,北京,100083 |
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| 基金项目： | "十一五"国家科技计划支撑资助项目 |
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| 摘 要： | 通过形核理论解释了IF钢中Al2O3-Ti N的形成机理。RH中加TiFe合金化后由于局部wTi.wN浓度积有很大的过饱和度,满足异质形核条件,Ti N会以钢液中Al2O3为核心生成Al2O3-Ti N复合夹杂,但此时的Ti N并不稳定会随着钢液中wTi浓度的均匀而发生分解,在凝固过程中由于温度的降低和wTi的偏析会在凝固前沿Ti N再次析出。
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| 关 键 词： | IF钢 形核 夹杂物 |
| 收稿时间： | 2009-06-23; |
Generation Mechanism of Al2O3-TiN Inclusion in IF Steel |
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| WANG Min,BAO Yan-ping,CUI Heng,WU Hua-jie,WU Wei-shuang.Generation Mechanism of Al2O3-TiN Inclusion in IF Steel[J].Journal of Iron and Steel Research,2010,22(7):29-29. |
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| Authors: | WANG Min BAO Yan-ping CUI Heng WU Hua-jie WU Wei-shuang |
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| Abstract: | This paper explains the formation mechanism of Al2O3－TiN inclusion. The %Ti]%N] is so large that the TiN will precipitate on the Al2O3 surface after adding the TiFe alloy in RH. But the TiN is instable, it will decompose when the %Ti] concentration is uniform. TiN will precipitate once again in the solidification process due to the decrease of temperature and the segregation of %Ti] concentration. |
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| Keywords: | IF steel nucleation inclusion |
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