Hongguang Zheng and Weiqing Chen, Formation of CaO-TiO2-MgO-Al2O3 dual phase inclusion in Ti stabilized stainless steel, J. Univ. Sci. Technol. Beijing, 13(2006), No. 1, pp. 16-20. https://doi.org/10.1016/S1005-8850(06)60006-6
Cite this article as:
Hongguang Zheng and Weiqing Chen, Formation of CaO-TiO2-MgO-Al2O3 dual phase inclusion in Ti stabilized stainless steel, J. Univ. Sci. Technol. Beijing, 13(2006), No. 1, pp. 16-20. https://doi.org/10.1016/S1005-8850(06)60006-6
Hongguang Zheng and Weiqing Chen, Formation of CaO-TiO2-MgO-Al2O3 dual phase inclusion in Ti stabilized stainless steel, J. Univ. Sci. Technol. Beijing, 13(2006), No. 1, pp. 16-20. https://doi.org/10.1016/S1005-8850(06)60006-6
Citation:
Hongguang Zheng and Weiqing Chen, Formation of CaO-TiO2-MgO-Al2O3 dual phase inclusion in Ti stabilized stainless steel, J. Univ. Sci. Technol. Beijing, 13(2006), No. 1, pp. 16-20. https://doi.org/10.1016/S1005-8850(06)60006-6
The formation of CaO-TiO2-MgO-Al2O3 dual phase inclusion in 321 stainless steel was investigated in the laboratory. The result indicated that the condition for the formation of CaOTiO2-MgOAl2O3 in 321 steel is [Ca]>0.001wt%, [Ti]>0.1wt%, and [Al]>0.01wt%. The mechanism is the following: Al2O3 inclusion turns into CaO-Al2O3 after Ca-Si wire is fed into the molten steel; [Mg] is then obtained by reducing MgO in slag or crucible wall by [Al] and [Ti]; finally CaO-Al2O3 inclusion is changed into CaO-TiO2-MgO-Al2O3 by the reaction with [Mg], [Ti], and [O] in the molten steel simultaneously.
The formation of CaO-TiO2-MgO-Al2O3 dual phase inclusion in 321 stainless steel was investigated in the laboratory. The result indicated that the condition for the formation of CaOTiO2-MgOAl2O3 in 321 steel is [Ca]>0.001wt%, [Ti]>0.1wt%, and [Al]>0.01wt%. The mechanism is the following: Al2O3 inclusion turns into CaO-Al2O3 after Ca-Si wire is fed into the molten steel; [Mg] is then obtained by reducing MgO in slag or crucible wall by [Al] and [Ti]; finally CaO-Al2O3 inclusion is changed into CaO-TiO2-MgO-Al2O3 by the reaction with [Mg], [Ti], and [O] in the molten steel simultaneously.
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