Thermodynamics of Titanium and Oxygen Dissolved in Liquid Iron Equilibrated with Titanium Oxides
- Title
- Thermodynamics of Titanium and Oxygen Dissolved in Liquid Iron Equilibrated with Titanium Oxides
- Author
- 박종진
- Keywords
- liquid iron; deoxidation; titanium; oxygen; titanium oxides; equilibrium constant; interaction parameter
- Issue Date
- 2007-01
- Publisher
- IRON STEEL INST JAPAN KEIDANREN KAIKAN
- Citation
- ISIJ INTERNATIONAL, v. 47, No. 1, Page. 16-24
- Abstract
- The equilibrium relation of Ti and 0 dissolved in liquid iron saturated with solid titanium oxides was measured in the temperature range of 1 823 to 1 923 K. Pure T2O3 (S) phase was identified as the equilibrium deoxidation product for iron melts containing 0.25-4.75 mass% Ti. Using Wagner's formalism, the present results were thermodynamically analyzed to determine the equilibrium constant of T deoxiclation reaction for the formation of pure T2O3 (s) and the first- and second-order interaction parameters between T and 0 given as follows in the temperature range of 1 823 to 1 923 K.
[GRAPHICS]
The equilibrium titanium oxide phase was identified as Ti3O5(s) for iron melts containing 0.0012-0.25 mass% Ti at 1 873 K. The equilibrium constant of T deoxidation reaction for the formation of pure Ti3O5 (s) were estimated as follows.
[GRAPHICS]
The activity coefficient of Ti in liquid iron at infinite dilution, gamma(Ti(s))degrees was assessed as 0.011, 0.014 and 0.018 at 1 823 K, 1 873 K and 1 923 K, respectively.
- URI
- https://www.jstage.jst.go.jp/article/isijinternational/47/1/47_1_16/_article/-char/ja/https://repository.hanyang.ac.kr/handle/20.500.11754/106217
- ISSN
- 0915-1559; 1347-5460
- DOI
- 10.2355/isijinternational.47.16
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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