The Composition and Morphology Evolution of Oxide Inclusions in Ti-bearing Ultra Low-carbon Steel Melt Refined in the RH Process
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概要
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Before deoxidation, the main inclusions were Fe–Mn–O inclusions in Ti-bearing ultra low-carbon steel melt. After 3 min Al addition, the inclusions changed to be granular and spherical Al2O3. Al2O3 cluster, composed of granular and spherical particles with diameter 1–2 μm, formed in 7 to 10 min after Al addition into the melt. Al2O3·TiOx inclusions with the Ti/(Al+Ti) between 0.15 and 0.30 formed 3 min after ferro-titanium addition and Al2O3·TiOx cluster formed because rich [Ti] and poor [Al] regions existed around the ferro-titanium particles and Al2O3 cluster. The Ti3O5 was hard to be formed when acid-soluble aluminum exceeded 0.035% with titanium blow 0.08%. The activity of Ti3O5 in the complex liquid phase inclusions increased remarkably with the decrease of acid-soluble aluminum and increase of titanium.
- 社団法人 日本鉄鋼協会の論文
- 2010-11-15
著者
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Bao Yan-ping
Engineering Research Center Of Metallurgical Technology Engineering Research Institute University Of
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Wang Min
Engineering Research Center Of Metallurgical Technology Engineering Research Institute University Of
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CUI Heng
Engineering Research Center of Metallurgical Technology, Engineering Research Institute, University
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WU Hua-jie
Engineering Research Center of Metallurgical Technology, Engineering Research Institute, University
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WU Wei-shuang
Engineering Research Center of Metallurgical Technology, Engineering Research Institute, University
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Wu Hua-jie
Engineering Research Center Of Metallurgical Technology Engineering Research Institute University Of
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Wu Wei-shuang
Engineering Research Center Of Metallurgical Technology Engineering Research Institute University Of
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Cui Heng
Engineering Research Center Of Metallurgical Technology Engineering Research Institute University Of