Solubility product of Tin in austenite

Ken Inoue; Ikuo Ohnuma; Hiroshi Ohtaimi; Kiyohito Ishida; Taiji Nishizawa

doi:10.2355/isijinternational.38.991

Solubility product of Tin in austenite

Ken Inoue, Ikuo Ohnuma, Hiroshi Ohtaimi, Kiyohito Ishida, Taiji Nishizawa

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

57 Citations (Scopus)

Abstract

The solubility product of TiN in an austenitic steel was experimentally determined using a diffusion couple technique. Diffusion couples consisting of Ti-N steels with various compositions were annealed at temperatures between 1 473 and 1 623 K, taking special care to exclude the oxygen contamination during the annealing. The solubility limit of TiN was determined from the break points of iso-activity lines for nitrogen. A thermodynamic analysis was also carried out to arrive at solubility products by considering the wide range of temperature dependence of the TiN formation energy. Solubility products in austenite (γ), ferrite (α or δ) and liquid phases were determined as log(mass%Ti) (mass%N)_γ=4.35-14890/T, log(mass%Ti)(mass%N)_α(δ)=4.65-16310/T and log (mass%Ti) (mass%N)_liq=4.46-13500/T respectively.

Original language	English
Pages (from-to)	991-997
Number of pages	7
Journal	Isij International
Volume	38
Issue number	9
DOIs	https://doi.org/10.2355/isijinternational.38.991
Publication status	Published - 1998
Externally published	Yes

Keywords

Diffusion couple technique
Microalloyed steels
Solubility
Thermodynamic analysis
Titanium nitride

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.2355/isijinternational.38.991

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title = "Solubility product of Tin in austenite",

abstract = "The solubility product of TiN in an austenitic steel was experimentally determined using a diffusion couple technique. Diffusion couples consisting of Ti-N steels with various compositions were annealed at temperatures between 1 473 and 1 623 K, taking special care to exclude the oxygen contamination during the annealing. The solubility limit of TiN was determined from the break points of iso-activity lines for nitrogen. A thermodynamic analysis was also carried out to arrive at solubility products by considering the wide range of temperature dependence of the TiN formation energy. Solubility products in austenite (γ), ferrite (α or δ) and liquid phases were determined as log(mass%Ti) (mass%N)γ=4.35-14890/T, log(mass%Ti)(mass%N)α(δ)=4.65-16310/T and log (mass%Ti) (mass%N)liq=4.46-13500/T respectively.",

keywords = "Diffusion couple technique, Microalloyed steels, Solubility, Thermodynamic analysis, Titanium nitride",

author = "Ken Inoue and Ikuo Ohnuma and Hiroshi Ohtaimi and Kiyohito Ishida and Taiji Nishizawa",

year = "1998",

doi = "10.2355/isijinternational.38.991",

language = "English",

volume = "38",

pages = "991--997",

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

issn = "0915-1559",

publisher = "Iron and Steel Institute of Japan",

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TY - JOUR

T1 - Solubility product of Tin in austenite

AU - Inoue, Ken

AU - Ohnuma, Ikuo

AU - Ohtaimi, Hiroshi

AU - Ishida, Kiyohito

AU - Nishizawa, Taiji

PY - 1998

Y1 - 1998

N2 - The solubility product of TiN in an austenitic steel was experimentally determined using a diffusion couple technique. Diffusion couples consisting of Ti-N steels with various compositions were annealed at temperatures between 1 473 and 1 623 K, taking special care to exclude the oxygen contamination during the annealing. The solubility limit of TiN was determined from the break points of iso-activity lines for nitrogen. A thermodynamic analysis was also carried out to arrive at solubility products by considering the wide range of temperature dependence of the TiN formation energy. Solubility products in austenite (γ), ferrite (α or δ) and liquid phases were determined as log(mass%Ti) (mass%N)γ=4.35-14890/T, log(mass%Ti)(mass%N)α(δ)=4.65-16310/T and log (mass%Ti) (mass%N)liq=4.46-13500/T respectively.

AB - The solubility product of TiN in an austenitic steel was experimentally determined using a diffusion couple technique. Diffusion couples consisting of Ti-N steels with various compositions were annealed at temperatures between 1 473 and 1 623 K, taking special care to exclude the oxygen contamination during the annealing. The solubility limit of TiN was determined from the break points of iso-activity lines for nitrogen. A thermodynamic analysis was also carried out to arrive at solubility products by considering the wide range of temperature dependence of the TiN formation energy. Solubility products in austenite (γ), ferrite (α or δ) and liquid phases were determined as log(mass%Ti) (mass%N)γ=4.35-14890/T, log(mass%Ti)(mass%N)α(δ)=4.65-16310/T and log (mass%Ti) (mass%N)liq=4.46-13500/T respectively.

KW - Diffusion couple technique

KW - Microalloyed steels

KW - Solubility

KW - Thermodynamic analysis

KW - Titanium nitride

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JO - Transactions of the Iron and Steel Institute of Japan

JF - Transactions of the Iron and Steel Institute of Japan

SN - 0915-1559

IS - 9

ER -

Solubility product of Tin in austenite

Abstract

Keywords

ASJC Scopus subject areas

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