Influence of neodymium on the deoxidation and desulfurization equilibria of liquid iron in the Fe-Nd-O-S(-Al) System at 1873 K

Hideki Ono; Yasuhisa Tachiiri; Katsuhiro Yamaguchi; Tateo Usui

doi:10.2355/isijinternational.49.1656

Influence of neodymium on the deoxidation and desulfurization equilibria of liquid iron in the Fe-Nd-O-S(-Al) System at 1873 K

Hideki Ono^*, Yasuhisa Tachiiri, Katsuhiro Yamaguchi, Tateo Usui

^*Corresponding author for this work

Materials Design and Engineering

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

6 Scopus citations

Abstract

Deoxidation and desulfurization equilibria of liquid iron, as influenced by neodymium, were investigated at a temperature of 1 873 K. The following thermodynamic values for neodymium deoxidation and desulfurization were derived: Nd₂O₃(s)=2Nd/(mass%, in Fe)+3O/ (mass%, in Fe) log K _Nd2_o3=-13.5(±0.4) Nd₂O ₂S(s)=2Nd/ (mass%, in Fe) +2O/(mass%, in Fe)+S/(mass%, in Fe) log K_Nd2O₃S=-13.0(±0.4) e○_Nd- 147(±17), e^s_Nd= 178(±50) Using the thermodynamic data derived in this study, deoxidation and desulfurization equilibria of liquid iron by neodymium are presented for the Fe-Nd-O-S system. Moreover, the interaction parameter, Al for Nd (e^AL_NBd) was determined to be 4.9(±4.1) at 1 873 K.

Original language	English
Pages (from-to)	1656-1660
Number of pages	5
Journal	ISIJ International
Volume	49
Issue number	11
DOIs	https://doi.org/10.2355/isijinternational.49.1656
State	Published - 2009

Keywords

Deoxidation
Desulfurization
Equilibrium
Interaction parameter
Neodymium

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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title = "Influence of neodymium on the deoxidation and desulfurization equilibria of liquid iron in the Fe-Nd-O-S(-Al) System at 1873 K",

abstract = "Deoxidation and desulfurization equilibria of liquid iron, as influenced by neodymium, were investigated at a temperature of 1 873 K. The following thermodynamic values for neodymium deoxidation and desulfurization were derived: Nd2O3(s)=2Nd/(mass%, in Fe)+3O/ (mass%, in Fe) log K Nd2o3=-13.5(±0.4) Nd2O 2S(s)=2Nd/ (mass%, in Fe) +2O/(mass%, in Fe)+S/(mass%, in Fe) log KNd2O3S=-13.0(±0.4) e○Nd- 147(±17), esNd= 178(±50) Using the thermodynamic data derived in this study, deoxidation and desulfurization equilibria of liquid iron by neodymium are presented for the Fe-Nd-O-S system. Moreover, the interaction parameter, Al for Nd (eALNBd) was determined to be 4.9(±4.1) at 1 873 K.",

keywords = "Deoxidation, Desulfurization, Equilibrium, Interaction parameter, Neodymium",

author = "Hideki Ono and Yasuhisa Tachiiri and Katsuhiro Yamaguchi and Tateo Usui",

year = "2009",

doi = "10.2355/isijinternational.49.1656",

language = "英語",

volume = "49",

pages = "1656--1660",

journal = "ISIJ International",

issn = "0915-1559",

publisher = "Iron and Steel Institute of Japan",

number = "11",

}

TY - JOUR

T1 - Influence of neodymium on the deoxidation and desulfurization equilibria of liquid iron in the Fe-Nd-O-S(-Al) System at 1873 K

AU - Ono, Hideki

AU - Tachiiri, Yasuhisa

AU - Yamaguchi, Katsuhiro

AU - Usui, Tateo

PY - 2009

Y1 - 2009

N2 - Deoxidation and desulfurization equilibria of liquid iron, as influenced by neodymium, were investigated at a temperature of 1 873 K. The following thermodynamic values for neodymium deoxidation and desulfurization were derived: Nd2O3(s)=2Nd/(mass%, in Fe)+3O/ (mass%, in Fe) log K Nd2o3=-13.5(±0.4) Nd2O 2S(s)=2Nd/ (mass%, in Fe) +2O/(mass%, in Fe)+S/(mass%, in Fe) log KNd2O3S=-13.0(±0.4) e○Nd- 147(±17), esNd= 178(±50) Using the thermodynamic data derived in this study, deoxidation and desulfurization equilibria of liquid iron by neodymium are presented for the Fe-Nd-O-S system. Moreover, the interaction parameter, Al for Nd (eALNBd) was determined to be 4.9(±4.1) at 1 873 K.

AB - Deoxidation and desulfurization equilibria of liquid iron, as influenced by neodymium, were investigated at a temperature of 1 873 K. The following thermodynamic values for neodymium deoxidation and desulfurization were derived: Nd2O3(s)=2Nd/(mass%, in Fe)+3O/ (mass%, in Fe) log K Nd2o3=-13.5(±0.4) Nd2O 2S(s)=2Nd/ (mass%, in Fe) +2O/(mass%, in Fe)+S/(mass%, in Fe) log KNd2O3S=-13.0(±0.4) e○Nd- 147(±17), esNd= 178(±50) Using the thermodynamic data derived in this study, deoxidation and desulfurization equilibria of liquid iron by neodymium are presented for the Fe-Nd-O-S system. Moreover, the interaction parameter, Al for Nd (eALNBd) was determined to be 4.9(±4.1) at 1 873 K.

KW - Deoxidation

KW - Desulfurization

KW - Equilibrium

KW - Interaction parameter

KW - Neodymium

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U2 - 10.2355/isijinternational.49.1656

DO - 10.2355/isijinternational.49.1656

M3 - 学術論文

AN - SCOPUS:74549129455

SN - 0915-1559

VL - 49

SP - 1656

EP - 1660

JO - ISIJ International

JF - ISIJ International

IS - 11

ER -

Influence of neodymium on the deoxidation and desulfurization equilibria of liquid iron in the Fe-Nd-O-S(-Al) System at 1873 K

Abstract

Keywords

ASJC Scopus subject areas

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