The effect of Al content on the wettability between liquid iron and MgO Al2O3 binary substrate

Shen, Ping; Zhang, Lifeng; Fu, Jianxun; Zhou, Hao; Wang, Yi; Cheng, Limei

doi:10.1016/j.ceramint.2019.02.205

Cited by 16 publications

(15 citation statements)

References 21 publications

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“…Previous investigation proved that the microstructure with the surface roughness of lower than 300 nm had little influence on the wettability. [ 14 ] Steel samples were prepared in a Si–Mo furnace by adding different amounts of 20 wt% Ce–Fe alloy into a Si–Mn‐killed steel. The content of cerium in Si–Mn‐killed steel measured by inductive coupled plasma emission spectrometer (ICP) was 0 and 450 ppm, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…[3,4] Due to the inevitable interactions between the molten steel and refractory materials, it has a great influence on the steel quality, [5][6][7] the refractory service life, and production safety, [8][9][10][11][12][13] which is significantly affected by the wettability. [14] The wettability between liquid steel and pure oxide refractory is well studied. [15][16][17] However, there are fewer studies of the wettability between refractory containing different impurities and Si-Mn-killed steel.…”

Section: Introductionmentioning

confidence: 99%

“…[20][21][22][23] However, with the introduction of the rare-earth elements in steel, some problems such as nozzle clogging and refractory corrosion may become more serious, [24,25] which can be improved by wettability to a certain content. [14,26] However, there were little works on the Ce-containing Si-Mn steel and refractory. The current authors have measured the Si-Mn-killed steel between MgO-Al 2 O 3 refractory and MgO-Cr 2 O 3 refractory.…”

Section: Introductionmentioning

confidence: 99%

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Wettability Between Si–Mn‐Killed Steel and MgO‐Based Refractory Containing SiO₂ Impurities

Cheng¹,

Ren

Liu³

et al. 2022

steel research int.

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Herein, contact angles between the Si–Mn‐killed steel with and without cerium and the MgO–SiO2 refractory are measured in a reducing atmosphere. With the increase of the SiO2 in the refractory from 3 to 10 wt%, the initial contact angle for the steel without cerium decreases from 140.2° to 131.4°, and the equilibrium contact angle decreases from 136.8° to 127.8°. For the cerium‐containing steel, the initial contact angle and equilibrium contact angle decrease from 140.9° and 120.6° to 131.6° and 107.4°, respectively. With the increase of SiO2 content in the MgO‐based refractory, the increase of the Mg2SiO4 in the refractory causes the reduction of the initial contact angle between the Si–Mn‐killed steel and the refractory. The interfacial reaction between the steel and the refractory decreases the contact angle. The addition of cerium in the steel promotes the interfacial reaction, obviously decreasing the contact angle.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Wettability Between Si–Mn‐Killed Steel and MgO‐Based Refractory Containing SiO₂ Impurities

Cheng¹,

Ren

Liu³

et al. 2022

steel research int.

Self Cite

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“…1,2) For instance, MgO-Al 2 O 3 spinel inclusion may lead to steel defects and clogging of nozzles during the continuous casting process because of its high melting temperature and high hardness. 3,4) Since magnesium is rarely added to molten steel, MgO from slag and MgO-based refractory materials are considered the main sources of the magnesium that generates spinel inclusions. 5) On the other hand, the CaO-containing inclusions can hardly lead to the clogging of nozzles due to its low melting temperature.…”

Section: Introductionmentioning

confidence: 99%

Dissolution Behavior of Mg and Ca from Dolomite Refractory into Al-killed Molten Steel

et al. 2021

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Dolomite refractories are widely used in the refining process of clean steel and are considered potential sources of Mg and Ca that form MgO•Al 2 O 3 spinel and CaO-containing inclusions. In this study, dolomite refractories were immersed into Al-killed molten steel with either 0.05% Al or 0.25% Al. The dissolution behavior of Mg and Ca from the dolomite refractory was studied, and the inclusion transformation behavior was observed. The results revealed that MgO in the dolomite refractory was reduced by Al in the molten steel, and the Mg content depended on the Al content. On the contrary, CaO barely dissolved into the molten steel even though the Al content increased. After immersion in both the low Al (0.05% Al) and high Al (0.25% Al) steels, an interfacial layer consisting of solid MgO and liquid phase CaO-Al 2 O 3 -MgO was formed on the surface of the rods. The initial Al 2 O 3 inclusions gradually changed into Al 2 O 3 saturated MgO-Al 2 O 3 spinel after 60 min in low-Al steel; but were quickly transformed into MgO-saturated MgO-Al 2 O 3 spinel in high Al steel. No CaO-containing inclusions were detected in the molten steel regardless of the immersion time and Al content.

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“…The Mn oxides on the interaction between the refractory and melting steel have strongly affected the service life of the reactor, steel cleanliness, and production safety. [24][25][26] Additionally, the formed Mn oxides' dust damages the vacuum system and increases emissions. Unfortunately, the characteristics of the oxidized phase of the Mn fumes from melting Mn steel after the vacuum treatment have not been reported to date.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Oxidation Behavior of Mn Fumes Generated in the Vacuum Treatment of Melting Mn Steels

Chu

Bao

et al. 2020

steel research int.

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Herein, the phase, composition, morphologies, particle size distribution, and specific surface area of Mn oxide fumes generated after the vacuum treatment of melting Mn steels with different initial Mn contents are characterized. The thermodynamic calculation results reveal that for a given temperature and pressure, Mn vapor generation increases with increasing initial Mn content in steel. Moreover, the experimental results find that the amount of the Mn oxide fumes on the vacuum chamber after vacuum processing gradually increases with increasing initial Mn content in the melt. The fumes on the crucible generated after vacuum processing are composed of mainly coral‐shaped Mn3O4 with the size of 500 nm and a small amount of spherical‐like Mn2O3 with the sizes of 50–200 nm. Meanwhile, the fumes deposited on the furnace chamber contain Mn nanoparticles with the sizes of less than 50 nm, MnO nanorods with the sizes of 50–200 nm, and Mn3O4 nanoparticles with the sizes of 50–500 nm. In addition, the main phase of the fumes deposited on the vacuum chamber gradually changes to elemental Mn with an increase in the initial Mn content. The temperature and particle size are responsible for thermodynamic stability of Mn oxides at the nanoscale.

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The effect of Al content on the wettability between liquid iron and MgO Al2O3 binary substrate

Cited by 16 publications

References 21 publications

Wettability Between Si–Mn‐Killed Steel and MgO‐Based Refractory Containing SiO₂ Impurities

Wettability Between Si–Mn‐Killed Steel and MgO‐Based Refractory Containing SiO₂ Impurities

Dissolution Behavior of Mg and Ca from Dolomite Refractory into Al-killed Molten Steel

Characterization of Oxidation Behavior of Mn Fumes Generated in the Vacuum Treatment of Melting Mn Steels

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The effect of Al content on the wettability between liquid iron and MgO Al2O3 binary substrate

Cited by 16 publications

References 21 publications

Wettability Between Si–Mn‐Killed Steel and MgO‐Based Refractory Containing SiO2 Impurities

Wettability Between Si–Mn‐Killed Steel and MgO‐Based Refractory Containing SiO2 Impurities

Dissolution Behavior of Mg and Ca from Dolomite Refractory into Al-killed Molten Steel

Characterization of Oxidation Behavior of Mn Fumes Generated in the Vacuum Treatment of Melting Mn Steels

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Product

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Wettability Between Si–Mn‐Killed Steel and MgO‐Based Refractory Containing SiO₂ Impurities

Wettability Between Si–Mn‐Killed Steel and MgO‐Based Refractory Containing SiO₂ Impurities