Complex Deoxidation Equilibria of Molten Iron by Aluminum and Calcium
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概要
- 論文の詳細を見る
The influence of oxygen potential in molten steel on the steelmaking reactions, such as desulfurization and denitrogenization by fluxes, is very significant, and it is important to control oxygen content of the molten steel. The use of the strong deoxidizing agents, such as Al and Ca, is effective for decreasing oxygen content of steel, and several researches on the complex deoxidation have been carried out. However, the experimental data do not necessarily accord with the thermodynamically calculated ones, because the reliable thermodynamic data on Ca deoxidation of molten iron are unavailable. In the present study, the complex deoxidation equilibria of molten iron by Al and Ca have been examined at 1873 K. The oxygen activity in molten iron deoxidized by Al and Ca has been measured by an electro motive force (EMF) method at 1873 K. The Al-Ca complex deoxidation equilibria are presented, and the validity is confirmed from the present experimental results and the previous ones in the literature on the complex deoxidation by Al and Ca. The Al-Ca deoxidation equilibria presented in the present study can represent the relationship of Fe-Al-Ca-O system more properly than the previously reported ones.
- 社団法人 日本鉄鋼協会の論文
- 2005-11-15
著者
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田口 賢治
九大
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MARUKAWA Katsukiyo
Center for Advanced Science and Innovation, Osaka University
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Marukawa K
Center For Advanced Science And Innovation Osaka University
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Marukawa Katsukiyo
Cooperative Research Center Advanced Science & Technology Osaka University
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Ono Nakazato
Division Of Materials And Manufacturing Science Graduate School Of Engineering Osaka University
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Usui T
Division Of Materials And Manufacturing Science Graduate School Of Engineering Osaka University
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Ono Nakazato
Department Of Materials Science And Processing Graduate School Of Engineering Osaka University
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Kosaka Hiroaki
Toyo Engineering And Research Center Co. Ltd.
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Taguchi Kenji
Graduate School Of Engineering Osaka University. Now At Corporate Research & Development Laborat
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ONO NAKAZATO
Course of Materials Science and Engineering, Division of Materials and Manufacturing Science, Gradua
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USUI Tateo
Course of Materials Science and Engineering, Division of Materials and Manufacturing Science, Gradua
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KATOGI Ken
Heraeus Electro-Nite Japan, LTD.
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Katogi Ken
Heraeus Electro-nite Japan Ltd.
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Taguchi Kenji
Graduate School Of Engineering Osaka University
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