In-situ observation of dynamic interfacial phenomena between CaO-(SiO 2 or Al2O3) slag and Fe-11%Cr alloy near the MgO-6%C refractory at 1823 K

Minsoo Shin; Seungyoun Cho; Joonho Lee; Joo Hyun Park

doi:10.1007/s12540-010-0623-5

In-situ observation of dynamic interfacial phenomena between CaO-(SiO ₂ or Al₂O₃) slag and Fe-11%Cr alloy near the MgO-6%C refractory at 1823 K

Minsoo Shin, Seungyoun Cho, Joonho Lee, Joo Hyun Park

Department of Materials Science and Engineering

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

5 Citations (Scopus)

Abstract

We investigated dynamic interfacial phenomena at the slag-metal-refractory three-phase interface using a high temperature X-ray radiographic technique. Dynamic movement of the metal-slag line between Fe-11%Cr alloy and CaO-(SiO ₂ or Al₂O₃) slag was observed near the MgO-6%C refractory at 1823 K. We observed corresponding local corrosion of the refractory with CaO-SiO2 slag but it was negligible with CaO-Al2O3 slag. From a thermodynamic perspective, the Marangoni convection at the slag-metal-refractory interface is not the dominant factor determining the corrosion rate of the MgO-C refractory. Rather, it is the large solubility limit and the mass transfer in the slag phase.

Original language	English
Pages (from-to)	495-499
Number of pages	5
Journal	Metals and Materials International
Volume	16
Issue number	3
DOIs	https://doi.org/10.1007/s12540-010-0623-5
Publication status	Published - 2010 Jun

Keywords

Dynamic interfacial phenomena
Image analysis
Oxides
Purification
Wetting

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

Access to Document

10.1007/s12540-010-0623-5

Cite this

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title = "In-situ observation of dynamic interfacial phenomena between CaO-(SiO 2 or Al2O3) slag and Fe-11%Cr alloy near the MgO-6%C refractory at 1823 K",

abstract = "We investigated dynamic interfacial phenomena at the slag-metal-refractory three-phase interface using a high temperature X-ray radiographic technique. Dynamic movement of the metal-slag line between Fe-11%Cr alloy and CaO-(SiO 2 or Al2O3) slag was observed near the MgO-6%C refractory at 1823 K. We observed corresponding local corrosion of the refractory with CaO-SiO2 slag but it was negligible with CaO-Al2O3 slag. From a thermodynamic perspective, the Marangoni convection at the slag-metal-refractory interface is not the dominant factor determining the corrosion rate of the MgO-C refractory. Rather, it is the large solubility limit and the mass transfer in the slag phase.",

keywords = "Dynamic interfacial phenomena, Image analysis, Oxides, Purification, Wetting",

author = "Minsoo Shin and Seungyoun Cho and Joonho Lee and Park, {Joo Hyun}",

note = "Funding Information: This study was also supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea. We are grateful to Dr. Yong-Seok Lee of POSCO, for his kind assistance with the experiments.",

year = "2010",

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doi = "10.1007/s12540-010-0623-5",

language = "English",

volume = "16",

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journal = "Metals and Materials International",

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AU - Shin, Minsoo

AU - Cho, Seungyoun

AU - Lee, Joonho

AU - Park, Joo Hyun

N1 - Funding Information: This study was also supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea. We are grateful to Dr. Yong-Seok Lee of POSCO, for his kind assistance with the experiments.

PY - 2010/6

Y1 - 2010/6

N2 - We investigated dynamic interfacial phenomena at the slag-metal-refractory three-phase interface using a high temperature X-ray radiographic technique. Dynamic movement of the metal-slag line between Fe-11%Cr alloy and CaO-(SiO 2 or Al2O3) slag was observed near the MgO-6%C refractory at 1823 K. We observed corresponding local corrosion of the refractory with CaO-SiO2 slag but it was negligible with CaO-Al2O3 slag. From a thermodynamic perspective, the Marangoni convection at the slag-metal-refractory interface is not the dominant factor determining the corrosion rate of the MgO-C refractory. Rather, it is the large solubility limit and the mass transfer in the slag phase.

AB - We investigated dynamic interfacial phenomena at the slag-metal-refractory three-phase interface using a high temperature X-ray radiographic technique. Dynamic movement of the metal-slag line between Fe-11%Cr alloy and CaO-(SiO 2 or Al2O3) slag was observed near the MgO-6%C refractory at 1823 K. We observed corresponding local corrosion of the refractory with CaO-SiO2 slag but it was negligible with CaO-Al2O3 slag. From a thermodynamic perspective, the Marangoni convection at the slag-metal-refractory interface is not the dominant factor determining the corrosion rate of the MgO-C refractory. Rather, it is the large solubility limit and the mass transfer in the slag phase.

KW - Dynamic interfacial phenomena

KW - Image analysis

KW - Oxides

KW - Purification

KW - Wetting

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DO - 10.1007/s12540-010-0623-5

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