Determination of Aluminum and Oxygen Contents in Liquid Iron in Equilibrium with .ALPHA.-Alumina and Hercynite.

Wasai, Kyoko; Mukai, Kusuhiro; Fuchiwaki, Hidetoshi; Yoshida, Akihiko

doi:10.2355/isijinternational.39.760

Cited by 10 publications

(9 citation statements)

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“…The present authors suggest that aluminum content at critical point is much lower than the reported results [33][34][35] as shown in Fig. 1.…”

Section: Introductioncontrasting

confidence: 54%

“…1. The oxygen content at the critical point was close to 0.074 mass% O, 30) 0.079 mass% O, 31) 0.0623 mass% O, 32) 0.0574 mass% O, 33) 0.074 mass% O 34) and 0.072 mass% O 35) in the literatures. However, reported aluminum content does not agree with the literatures.…”

Section: Equilibrium Amongmentioning

confidence: 99%

“…Pillay et al 31) has reported that aluminum content of the coexisting point at 1 973 K was less than 0.0005 mass% Al, which was much lower than other reserchers. [33][34][35] The reason of the discrepancy may be due to the difficulty of analysis at low aluminum content. Aluminum deoxidation product increases with nickel ad-…”

Section: Introductionmentioning

confidence: 99%

“…The critical point of Al 2 O 3 and FeO · Al 2 O 3 coexistence has been investigated by several researchers. [30][31][32][33][34][35] The oxygen content in iron, that alumina and hercynite coexisted at 1 873 K, was reported by Kim 34) and Wasai et al 35) are shown in Fig. 1 with the reported [1][2][3][4][5][6] aluminum deoxidation results and the present results obtained later in molten iron at 1 873 K. The point that Al 2 O 3 and FeO · Al 2 O 3 coexists should of course be on the Al 2 O 3 saturation curve.…”

Section: Introductionmentioning

confidence: 99%

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Aluminum Deoxidation Equilibrium of Molten Fe–Ni Alloy Coexisting with Alumina or Hercynite

Hayashi¹,

Uenishi²,

Kandori³

et al. 2008

ISIJ Int.

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Aluminum deoxidation equilibrium of molten Fe-Ni alloy was determined by chemical equilibrium method at temperature of 1 873 to 1 973 K. Also, critical point in molten Fe-40mass%Ni alloy that coexisted with Al 2 O 3 and FeO · Al 2 O 3 was determined experimentally at 1 973 K. Solvent extraction method was applied to improve the analytical accuracy of the low aluminum content in molten Fe-Ni alloy. The relation between aluminum and oxygen contents in molten Fe-Ni alloy equilibrated with Al 2 O 3 or FeO · Al 2 O 3 was estimated in the whole alloy composition range at 1 873 to 1 973 K by utilizing the metallic solution model based on Darken's quadratic formalism and Redlich-Kister type polynomial.

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“…The present authors suggest that aluminum content at critical point is much lower than the reported results [33][34][35] as shown in Fig. 1.…”

Section: Introductioncontrasting

confidence: 54%

Section: Equilibrium Amongmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Aluminum Deoxidation Equilibrium of Molten Fe–Ni Alloy Coexisting with Alumina or Hercynite

Hayashi¹,

Uenishi²,

Kandori³

et al. 2008

ISIJ Int.

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“…The various experimental values for this minimum differ significantly, however. Furthermore, Wasai et al [10] studied the three phase equilibrium liquid iron, Al2O3 and FeO.Al2O3 and compared with previous experimental data. They observed that the oxygen content increases in the low aluminum content region, as already previously noted by Gustafsson and Melberg [13], with substantial deviation from the usually accepted solubility product.…”

Section: Experimental Datamentioning

confidence: 99%

Desoxidação Do Ferro Por Alumínio: Uma Breve Revisão Dos Dados Experimentais E Descrições Termodinâmicas

Silva¹,

Avillez²,

Neto³

2018

ABM Proceedings

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ResumoO sistema ferro-oxigênio alumino tem sido investigado há muitos anos em função de sua importância para a indústria do aço. Uma grande fração de todo o aço plano produzido é de aço de baixo carbono acalmado ao alumínio, não apenas pelo baixo conteúdo de oxigênio residual em solução que pode ser obtido mas, também, pela importância do alumínio residual na formação de AlN, ferramenta importante no controle de estrutura e textura obtidas. O sistema Fe-O é relativamente bem compreendido e quantificado, da mesma forma que o sistema Fe-Al. Entretanto, há discrepâncias significativas na quantificação do comportamento do sistema Fe-Al-O havendo, ainda, bastante controvérsia com respeito a equilíbrios importantes. Assim, o objetivo deste trabalho é (a) realizar uma revisão crítica dos experimentos e avaliações termodinâmicas principalmente do equilíbrio Al-Fe-O-Al2O3 (b) avaliar os métodos atualmente usados para descrever este equilíbrio e (c) apresentar recomendações sobre os dados, com base em sua confiabilidade e consistência. Palavras-chave: Aço; Desoxidação; Sistema Fe-Al-O; Termodinâmica, CALPHAD LIQUID IRON DEOXIDATION BY ALUMINUM: A BRIEF REVIEW OF EXPERIMENTAL DATA AND THERMODYNAMIC DESCRIPTION AbstractThe iron-oxygen-aluminum equilibrium has been a subject of interest for many years for its importance in the steel industry. A great percentage of all flat rolled steel is aluminum killed "AK" (deoxidized) low-carbon steel, not only because of the low soluble oxygen contents that can be achieved but also because of the importance of the residual aluminum in forming aluminum nitride that is one of the main tools used to achieve crystallographic texture adequate for forming. The behavior of oxygen in liquid iron is relatively well understood and quantified, as is the behavior of aluminum in iron. Nonetheless, the Fe-Al-O system is not fully understood and considerable controversy still prevails. Thus, the objectives of this work is (a) to critically review the experimental work and assessments performed mainly of the Al-Fe-O-Al2O3 equilibrium, (b) to evaluate the current models used to describe this equilibrium and (c) to present a recommendation of the data, based on its reliability and consistency.

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Aluminium – Iron – Oxygen

Kubaschewski¹,

Schmid–Fetzer²,

Рохлин³

et al. 2008

Landolt-Börnstein - Group IV Physical Chemistry

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Determination of Aluminum and Oxygen Contents in Liquid Iron in Equilibrium with .ALPHA.-Alumina and Hercynite.

Abstract: Experiment and ApparatusThe apparatus used in the present experiments is equlpped with a vertical LaCr03 resistance furnace and a quenching vessel and is shown in Fig. 2 Fig. 6. In Fig. 6

Cited by 10 publications

References 0 publications

Aluminum Deoxidation Equilibrium of Molten Fe–Ni Alloy Coexisting with Alumina or Hercynite

Aluminum Deoxidation Equilibrium of Molten Fe–Ni Alloy Coexisting with Alumina or Hercynite

Desoxidação Do Ferro Por Alumínio: Uma Breve Revisão Dos Dados Experimentais E Descrições Termodinâmicas

Aluminium – Iron – Oxygen

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