Simulation for Mass Transfer Kinetics at Slag-Steel Interface during High Al Steel Continuous Casting

Kaitian, Zhang; Liu, Jianhua; Cui, Heng

doi:10.2355/isijinternational.isijint-2019-291

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Analysis Of Slag-steel Reactive Of Fluorine-free Mold Fluxes...1

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Cited by 5 publications

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“…Na 2 O can also react with Al in the molten steel, and the generated Na may enter the molten steel or mold slag. Zhang et al 20) analyzed the slag-steel reaction mechanism from the dynamic equilibrium model. The results showed that the SiO 2 in the slag reacted by the slag-steel is not a limiting link, but the limiting link is not pointed out.…”

Section: Analysis Of Slag-steel Reactive Of Fluorine-free Mold Fluxes...mentioning

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Analysis of Slag-Steel Reactive of Fluorine-free Mold Fluxes Used for 3.52% Al-TRIP Steel

et al. 2022

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Section: Analysis Of Slag-steel Reactive Of Fluorine-free Mold Fluxes...mentioning

confidence: 99%

Analysis of Slag-Steel Reactive of Fluorine-free Mold Fluxes Used for 3.52% Al-TRIP Steel

et al. 2022

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Interfacial Reaction Model of High-Al Steel in Continuous Casting Mold

Kong

Xing

Wang

et al. 2023

Metall Mater Trans B

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Crystallization of Slag Films of CaO-Al2O3-BaO-CaF2-Li2O-Based Mold Fluxes for High-Aluminum Steels’ Continuous Casting

Long

Luo

et al. 2023

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In this study, solidified films of CaO-Al2O3-BaO-CaF2-Li2O-based mold fluxes with different contents of Al2O3 addition were acquired by immersing an improved water-cooled copper probe in bulk molten slags. This probe can obtain films with representative structures. Different slag temperatures and probe immersion times were employed to investigate the crystallization process. The crystals in the solidified films were identified using X-ray diffraction, the morphologies of the crystals were observed using optical microscopy and scanning electron microscopy, and the kinetic conditions, especially the activation energy of devitrified crystallization in glassy slags, were calculated and discussed based on the differential scanning calorimetry. The results indicated that after adding extra Al2O3, the growing speed and thickness of the solidified films increased, and more time was required for the film thickness to reach a steady state. In addition, fine spinel (MgAl2O4) precipitated in the films at the early stage of solidification after adding 10 wt% of extra Al2O3. Together with LiAlO2, spinel (MgAl2O4) acted as nuclei for the precipitation of BaAl2O4. The apparent activation energy of initial devitrified crystallization decreased from 314.16 KJ/mol (original slag) to 297.32 KJ/mol (5 wt% Al2O3 added) and 269.46 KJ/mol (10 wt% Al2O3 added). The crystallization ratio of the films also increased after adding extra Al2O3.

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Simulation for Mass Transfer Kinetics at Slag-Steel Interface during High Al Steel Continuous Casting

Cited by 5 publications

References 28 publications

Analysis of Slag-Steel Reactive of Fluorine-free Mold Fluxes Used for 3.52% Al-TRIP Steel

Analysis of Slag-Steel Reactive of Fluorine-free Mold Fluxes Used for 3.52% Al-TRIP Steel

Interfacial Reaction Model of High-Al Steel in Continuous Casting Mold

Crystallization of Slag Films of CaO-Al2O3-BaO-CaF2-Li2O-Based Mold Fluxes for High-Aluminum Steels’ Continuous Casting

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