Temperature dependence of Ti deoxidation equilibria of liquid Iron in coexistence with 'Ti3O5' and Ti2O3

被引：50

作者：

Cha, Woo-Yeol ^{[1
]}

Miki, Takahiro ^{[2
]}

Sasaki, Yasushi ^{[2
]}

Hino, Mitsutaka ^{[2
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan

[2] Tohoku Univ, Grad Sch Engn, Dept Met, Aoba Ku, Sendai, Miyagi 9808579, Japan

来源：

ISIJ INTERNATIONAL | 2008年 / 48卷 / 06期

关键词：

thermodynamics; Ti deoxidation equilibrium; interaction parameter; quadratic formalism; Redlich-Kister polynomial; phase equilibria; titanium oxides; electron backscatter diffraction;

D O I：

10.2355/isijinternational.48.729

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The equilibrium relation between Ti and (O) under bar in liquid Fe has been measured only at 1 873 K on the condition of various kinds of titanium oxides saturation in our previous paper. The present work deals with the equilibrium between Ti and (O) under bar in liquid Fe saturated with 'Ti3O5' and Ti2O3 at 1 823 K and 1 923 K for full understanding temperature dependence. Also, equilibrium phase changes of titanium oxides with various Ti contents in molten Fe have been identified as the equilibrium titanium oxides with electron backscatter diffraction (EBSD) pattern analysis technique. The present results have been thermodynamically evaluated combining with previous results on the various thermodynamic values as a function of temperature. The equilibrium constants and the interaction parameters of Wagner's formalism were given as a function of temperature in the present work as follows. [GRAPHICS]

引用

页码：729 / 738

页数：10

共 44 条

[11]

DARKEN LS, 1967, T METALL SOC AIME, V239, P90

[12] Comparison of Fe-Ti assessments [J].

Dumitrescu, LFS ;

Hillert, M ;

Saunders, N .

JOURNAL OF PHASE EQUILIBRIA, 1998, 19 (05) :441-448

[13]

FRUEHAN RJ, 1970, METALL TRANS, V1, P3403

[14]

Furukawa T., 1975, TETSU TO HAGANE, V61, P3060

[15]

GHOSH A, 1986, T IRON STEEL I JPN, V26, P629

[16]

HADLEY RL, 1955, T AM I MIN MET ENG, V203, P55

[17] REGULAR SOLUTION MODEL FOR STOICHIOMETRIC PHASES AND IONIC MELTS [J].

HILLERT, M ;

STAFFANSSON, LI .

ACTA CHEMICA SCANDINAVICA, 1970, 24 (10) :3618-+

[18] DEOXIDATION EQUILIBRIA OF TITANIUM, ALUMINUM AND ZIRCONIUM IN IRON MELTS AT 1600 DEGREESC [J].

JANKE, D ;

FISCHER, WA .

ARCHIV FUR DAS EISENHUTTENWESEN, 1976, 47 (04) :195-198

[19]

*JAP SOC PROM SCI, 1988, STEELM DAT SOURC, P279

[20] Assessment of the Fe-Ti system [J].

Jonsson, S .

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 1998, 29 (02) :361-370

← 1 2 3 4 5 →