Activity of oxygen in liquid co-ni alloys

Tankins, Edwin S.

doi:10.1007/bf02900281

Cited by 5 publications

(2 citation statements)

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“…the thermodynamic properties of oxygen III liquid Fe-Ni alloys such as solubility, activity coefficient and free energy of dissolution of oxygen have been reported. Wriedt and Chipman [11], Sakao and Sano [13], Tankins [14], and Tankins and Gokcen [15] equilibrated the oxygen in liquid Fe-Ni alloys with H 20/H2 gas mixtures at 1773 to 1973 K. Bowers [16] equilibrated the melts with the CO /C0 2 gas mixtures at 1823 and 1923 K. Fischer and Hausmann [17] measured the activity of oxygen by using an EMF technique.…”

Section: Procedurementioning

confidence: 99%

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Aluminum deoxidation equilibrium in liquid Ni‐Fe alloys equilibrated with CaO‐Al₂O₃ slags

Cho

Suito

1995

Steel Research

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The deoxidation equilibrium for AI in Ni-Fe alloys was studied in the equilibrium experiments between CaO-AI 2 0 3 slags and 50 and 70 % Ni alloys at 1873 K. By using the values for the first and second order interaction parameters between oxygen and nickel in liquid iron and those between oxygen and iron in liquid nickel, the effect of Ni on the activity coefficient of AI in liquid iron and that of Fe on the activity coefficient of AI in liquid nickel were determined in the whole composition range of Ni-Fe alloys. The oxygen contents in Ni-Fe alloys calculated by the iterative method based on pure iron were in good agreement with those based on pure nickel in the range of [% AI] < 0.03. From this fact, it was found that the Wagner's approximation relating to the multi-component solution was applicable to the deoxidation equilibrium in the whole composition range of Ni-Fe alloys in the restricted concentration of a deoxidizer. Aluminiumdesoxidationsgleichgewicht in mit CaO-AI 203-Schlacken im Gleichgewicht befindlichen Ni-Fe-Schmelzen. Das Desoxidationsgleichgewicht von Aluminium in Ni-Fe-Legierungen wurde experimentell untersucht. Hierzu wurden CaO-AI 2 0 3-Schlacken mitFe-Ni-Legierungen mit 30, 50 und 70 % Ni bei 1873 K ins Gleichgewicht gebracht. Unter Verwendung der Werte fOr Wechselwirkungsparameter erster und zweiter Ordnung fOr Sauerstoff und Nickel in Eisenschmelzen sowie Sauerstoff und Eisen in Nickelschmelzen konnte sowohl die Wirkung von Nickel auf den Aktivitatskoeffizienten von Aluminium in Eisenschmelzen als auch von Fe auf den Aktivltatskoettlzienten von Aluminium in Nickelschmelzen fOr den gesamten Zusammensetzungensbereich von Ni-Fe-Legierungen bestimmt werden. Die Sauerstoffgehalte der Ni-Fe-Legierungen, die nach der iterativen Methode auf der Grundlage reinen Eisens berechnet wurden, stimmen gut mit den Werten auf Basis reinen Nickels im Bereich [% AI] < 0,03 Oberein. Hieraus lieB sich folgern, daB Wagners Annahsrunq fOr Mehrkomponentenlbsungen auch auf die Desoxidationsgleichgewichte im gesamten Bereich der Ni-Fe-Legierungen anwendbar ist.

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Section: Procedurementioning

confidence: 99%

“…Using the conversion relationships between interaction parameters on mole fraction and mass content in % scales given in equations (13) and (14), the ebCNi) and rbCNi) values were determined as -0.029 and 0.00015, respectively. These interaction parameters are listed in table 6 with those by other investigators [12;13;19;24;25].…”

Section: Procedurementioning

confidence: 99%

Aluminum deoxidation equilibrium in liquid Ni‐Fe alloys equilibrated with CaO‐Al₂O₃ slags

Cho

Suito

1995

Steel Research

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The thermochemistry of magnesium in nickel-base alloys: Part II. activity of magnesium

Samuelsson¹,

Mitchell

1992

Metall Trans B

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Solubility of hydrogen in liquid Fe−Co−Ni alloys

Blossey

Pehlke

1971

Metall Trans

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Activity of oxygen in liquid co-ni alloys

Cited by 5 publications

References 2 publications

Aluminum deoxidation equilibrium in liquid Ni‐Fe alloys equilibrated with CaO‐Al₂O₃ slags

Aluminum deoxidation equilibrium in liquid Ni‐Fe alloys equilibrated with CaO‐Al₂O₃ slags

The thermochemistry of magnesium in nickel-base alloys: Part II. activity of magnesium

Solubility of hydrogen in liquid Fe−Co−Ni alloys

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Activity of oxygen in liquid co-ni alloys

Cited by 5 publications

References 2 publications

Aluminum deoxidation equilibrium in liquid Ni‐Fe alloys equilibrated with CaO‐Al2O3 slags

Aluminum deoxidation equilibrium in liquid Ni‐Fe alloys equilibrated with CaO‐Al2O3 slags

The thermochemistry of magnesium in nickel-base alloys: Part II. activity of magnesium

Solubility of hydrogen in liquid Fe−Co−Ni alloys

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Aluminum deoxidation equilibrium in liquid Ni‐Fe alloys equilibrated with CaO‐Al₂O₃ slags

Aluminum deoxidation equilibrium in liquid Ni‐Fe alloys equilibrated with CaO‐Al₂O₃ slags