Ferrous oxide activity in FeO-TiO2-CaO-Al2O3 system

被引：9

作者：

Eissa, MM ^{[1
]}

ElFawakhry, KA ^{[1
]}

Tayor, W ^{[1
]}

ElFaramawy, H ^{[1
]}

Ahmed, AM ^{[1
]}

机构：

[1] HELWAN UNIV,FAC SCI,DEPT CHEM,CAIRO,EGYPT

来源：

ISIJ INTERNATIONAL | 1996年 / 36卷 / 05期

关键词：

ferrous oxide activity; FeO-CaO-Al2O3; system; FeO-TiO2-CaO-Al2O3; steelmaking slags;

D O I：

10.2355/isijinternational.36.512

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Ferrous oxide activity has been determined in molten synthetic slag mixtures of the quaternary system FeO-TiO2-CaO-Al2O3 al constant levels of Al2O3. Furthermore, in the course of determining the FeO activity in this quaternary system, the ternary system FeO-CaO-Al2O3 was also investigated at 1450 degrees C. The technique used to measure the ferrous oxide activity in the investigated systems was the well established one of gas-slag-metal equilibration in which molten slags contained in armco iron crucibles are exposed to a flowing gas mixture with a known oxygen potential until equilibrium has been attained. After equilibration, the final chemical analysis of the slags give compositions having a oxide activity corresponding to the oxygen potential of the gas mixture. The effect of Al2O3 additions on the FeO activity was determined. The results are presented as a series of iso-activity curves on pseudo-ternary diagrams. The interdependence between the ferrous oxide activities and slag composition was also studied.

引用

页码：512 / 516

页数：5

共 30 条

[21]

MINCHER AL, 1977, P C MICR, V75, P251

[22]

OUCHI C, 1982, T IRON STEEL I JPN, V22, P608

[23]

Pickering FB, 1990, MICROALLOYED VANADIU, P79

[24]

Smaill J. S., 1976, MET TECHNOL, V3, P194

[25] IMPROVING MECHANICAL-PROPERTIES OF MICROALLOY STEELS BY MODIFIED THERMOMECHANICAL TREATMENTS [J].

STREISSELBERGER, A ;

KASPAR, R ;

PAWELSKI, O .

MATERIALS SCIENCE AND TECHNOLOGY, 1985, 1 (02) :121-127

[26]

Tamura I., 1988, THERMEC 88, P232

[27] IMPROVEMENT IN HAZ TOUGHNESS OF STEEL BY TIN-MNS ADDITION [J].

TOMITA, Y ;

SAITO, N ;

TSUZUKI, T ;

TOKUNAGA, Y ;

OKAMOTO, K .

ISIJ INTERNATIONAL, 1994, 34 (10) :829-835

[28]

WILLIAMS JG, 1984, P C TECHN APPL HIGH, P262

[29]

YANNACOPOULOS S, 1988, CAN METALL QUART, V27, P163, DOI 10.1179/000844388795576547

[30]

YANNACOPOULOS S, 1989, CAN METALL QUART, V28, P85, DOI 10.1179/000844389795401710

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