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

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

Bibliographical 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.

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.",

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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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