Aluminum deoxidation equilibrium of molten Fe-Ni alloy coexisting with alumina or hercynite

Atsutaka Hayashi; Takayuki Uenishi; Hirotoshi Kandori; Takahiro Miki; Mitsutaka Hino

doi:10.2355/isijinternational.48.1533

Aluminum deoxidation equilibrium of molten Fe-Ni alloy coexisting with alumina or hercynite

Atsutaka Hayashi, Takayuki Uenishi, Hirotoshi Kandori, Takahiro Miki, Mitsutaka Hino

ENG - Metallurgy

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

Aluminum deoxidation equilibrium of molten Fe-Ni alloy was determined by chemical equilibrium method at temperature of 1873 to 1973 K. Also, critical point in molten Fe-40mass%Ni alloy that coexisted with AI ₂O ₃ and FeO. AI ₂O ₃ was determined experimentally at 1973 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 AI ₂O ₃ or FeO. AI ₂O ₃ was estimated in the whole alloy composition range at 1873 to 1973 K by utilizing the metallic solution model based on Darken's quadratic formalism and Redlich-Kister type polynomial.

Original language	English
Pages (from-to)	1533-1541
Number of pages	9
Journal	Isij International
Volume	48
Issue number	11
DOIs	https://doi.org/10.2355/isijinternational.48.1533
Publication status	Published - 2008

Keywords

Activity
Alumina
Aluminum deoxidation equilibrium
Excess free Gibbs energy
Hercynite
Iron
Iron-nickel alloy
Nickel
Quadratic formalism
Redlich-Kister polynomial
Thermodynamics

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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title = "Aluminum deoxidation equilibrium of molten Fe-Ni alloy coexisting with alumina or hercynite",

abstract = "Aluminum deoxidation equilibrium of molten Fe-Ni alloy was determined by chemical equilibrium method at temperature of 1873 to 1973 K. Also, critical point in molten Fe-40mass%Ni alloy that coexisted with AI 2O 3 and FeO. AI 2O 3 was determined experimentally at 1973 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 AI 2O 3 or FeO. AI 2O 3 was estimated in the whole alloy composition range at 1873 to 1973 K by utilizing the metallic solution model based on Darken's quadratic formalism and Redlich-Kister type polynomial.",

keywords = "Activity, Alumina, Aluminum deoxidation equilibrium, Excess free Gibbs energy, Hercynite, Iron, Iron-nickel alloy, Nickel, Quadratic formalism, Redlich-Kister polynomial, Thermodynamics",

author = "Atsutaka Hayashi and Takayuki Uenishi and Hirotoshi Kandori and Takahiro Miki and Mitsutaka Hino",

year = "2008",

doi = "10.2355/isijinternational.48.1533",

language = "English",

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pages = "1533--1541",

journal = "Transactions of the Iron and Steel Institute of Japan",

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publisher = "Iron and Steel Institute of Japan",

number = "11",

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TY - JOUR

T1 - Aluminum deoxidation equilibrium of molten Fe-Ni alloy coexisting with alumina or hercynite

AU - Hayashi, Atsutaka

AU - Uenishi, Takayuki

AU - Kandori, Hirotoshi

AU - Miki, Takahiro

AU - Hino, Mitsutaka

PY - 2008

Y1 - 2008

N2 - Aluminum deoxidation equilibrium of molten Fe-Ni alloy was determined by chemical equilibrium method at temperature of 1873 to 1973 K. Also, critical point in molten Fe-40mass%Ni alloy that coexisted with AI 2O 3 and FeO. AI 2O 3 was determined experimentally at 1973 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 AI 2O 3 or FeO. AI 2O 3 was estimated in the whole alloy composition range at 1873 to 1973 K by utilizing the metallic solution model based on Darken's quadratic formalism and Redlich-Kister type polynomial.

AB - Aluminum deoxidation equilibrium of molten Fe-Ni alloy was determined by chemical equilibrium method at temperature of 1873 to 1973 K. Also, critical point in molten Fe-40mass%Ni alloy that coexisted with AI 2O 3 and FeO. AI 2O 3 was determined experimentally at 1973 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 AI 2O 3 or FeO. AI 2O 3 was estimated in the whole alloy composition range at 1873 to 1973 K by utilizing the metallic solution model based on Darken's quadratic formalism and Redlich-Kister type polynomial.

KW - Activity

KW - Alumina

KW - Aluminum deoxidation equilibrium

KW - Excess free Gibbs energy

KW - Hercynite

KW - Iron

KW - Iron-nickel alloy

KW - Nickel

KW - Quadratic formalism

KW - Redlich-Kister polynomial

KW - Thermodynamics

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U2 - 10.2355/isijinternational.48.1533

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SP - 1533

EP - 1541

JO - Transactions of the Iron and Steel Institute of Japan

JF - Transactions of the Iron and Steel Institute of Japan

SN - 0915-1559

IS - 11

ER -

Aluminum deoxidation equilibrium of molten Fe-Ni alloy coexisting with alumina or hercynite

Abstract

Keywords

ASJC Scopus subject areas

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