| 1873K下钢液中Ti-Al复合脱氧热力学分析及夹杂物生成 |
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| 引用本文： | 杨成威,吕迺冰,王新华,王万军.1873K下钢液中Ti-Al复合脱氧热力学分析及夹杂物生成[J].北京科技大学学报,2009,31(11). |
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| 作者姓名： | 杨成威 吕迺冰 王新华 王万军 |
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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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| 摘 要： | 对1873K下钢液中Ti-Al-O系复合夹杂物的形成进行了理论和实验研究. 理论计算和实验结果表明,钢液中Ti-Al-O系的Al-O基本趋于平衡,钢液中自由氧由Al含量控制. Ti-Al-O系复合夹杂物的形成主要由a_(Ti)/a_(Al)值确定. 根据热力学数据计算得出了Ti-Al-O系复合夹杂物(Al_2O_3-Ti_3O_5-Ti_2O_3)的稳定区域;随着a_(Ti)/a_(Al)的增加,夹杂物逐步由Al_2O_3转变为Ti_3O_5夹杂物. 当钢液中自由氧含量较高时容易生成Ti3O5夹杂物. 计算结果和观察到的实验结果一致.
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| 关 键 词： | 复合夹杂物 氧化物冶金 析出 热力学 |
Deoxidization thermodynamics of Ti-Al systems in molten steel at 1873K and precipitation of inclusions |
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| YANG Cheng-wei,L Nai-bing,WANG Xin-hua,WANG Wan-jun.Deoxidization thermodynamics of Ti-Al systems in molten steel at 1873K and precipitation of inclusions[J].Journal of University of Science and Technology Beijing,2009,31(11). |
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| Authors: | YANG Cheng-wei L Nai-bing WANG Xin-hua WANG Wan-jun |
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| Institution: | YANG Cheng-wei,L(U) Nai-bing,WANG Xin-hua,WANG Wan-jun |
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| Abstract: | The thermodynamic analysis and experiments of inclusions formation in a Ti-Al-O system in molten steel at 1 873 K were investigated. The results show that in the Ti-Al-O system the equilibrium between Al and O can be obtained instantly and the content of O] is determined by the amount of Al. The formation of composite inclusions in the Ti-Al-O system depends on aTi/aAl values. According to thermodynamic data,the stable section in the phase diagram of composite inclusions (Al2O3-Ti3O5-Ti2O3) in the Ti-Al-O ... |
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| Keywords: | composite inclusions oxide metallurgy precipitation thermodynamics |
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