GRK2802: Interaction Between Molten Al-Killed Mn-B Steel and Carbon-Bonded MgO Refractories Based on Recyclates
References to related material | https://doi.org/10.1002/adem.202502360 | |
Type of the data | Dataset | |
Type of the data | Image | |
Type of the data | Text | |
Total size of the dataset | 92750733 | |
Author | Bellé, Matheus Roberto | |
Author | Neubert, Lukas | |
Author | Yehorov, Anton | |
Author | Stadtmüller, Till Manon Jannis | |
Author | Aneziris, Christos Georgios | |
Author | Volkova, Olena | |
Upload date | 2026-04-29T06:07:10Z | |
Publication date | 2026-04-29T06:07:10Z | |
Publication date | 2026-04-29 | |
Abstract of the dataset | This work investigates the high-temperature interactions between low-sulfur Al-killed Mn-B steel and carbon-bonded magnesia (MgO-C) refractories containing 0 wt% and 50 wt% recycled material (recyclates). Finger immersion tests (FIT) were conducted at 1600 °C under an argon atmosphere, with variations in boron (B) and sulfur (S) content. Microstructural and chemical analyses via SEM/EDX revealed the formation of protective MgO and CaS layers at the steel-refractory interface, alongside spinel (MgAl2O4) and calcium silicate phases. B and S jointly influenced wetting and infiltration behavior, while increased S promoted thicker CaS layers. Recyclates introduced microstructural heterogeneity (distributed dissolution sites) but did not significantly alter the interfacial reaction mechanisms. Both refractories exhibited comparable performance in forming protective layers, suggesting that recyclate-containing MgO-C materials can serve as sustainable alternatives without compromising thermochemical stability or steel cleanliness. These findings support the use of recycled materials in refractory manufacturing, contributing to waste reduction and circular economy practice in steelmaking. | |
Public reference to this page | https://opara.zih.tu-dresden.de/handle/123456789/2249 | |
Publisher | Technische Universität Bergakademie Freiberg | |
Specification of the discipline(s) | 4::43 | |
Title of the dataset | GRK2802: Interaction Between Molten Al-Killed Mn-B Steel and Carbon-Bonded MgO Refractories Based on Recyclates | |
Project abstract | The focus of this project is to investigate the interaction of a Al-killed low-sulphur manganese-boron steel and a highly basic desulphurisation slag with MgO-C products based on recyclates and environmentally friendly binders. In order to determine the influence of thermophysical properties on the interaction with new refractory materials, the viscosity, surface tension and density of the liquid aluminium-killed steel in undesulphurised and desulphurised condition and the slags with high sulphur capacity are investigated as a function of [S], [B], (SiO2), (MgO), (S) and temperature. By finger testing a MgO-C product in the molten steel and slag, the refractory samples are obtained for further analysis of the interactions using optical microscopy and SEM/EDX. The (S)/[S] distribution between the MBW1500 steel and the slag is investigated in a crucible of MgO-C products based on recyclates in the MFG-40. The inclusion population of the steel samples after examination via Finger Testing is interpreted by chemical analysis and analysed by optical examination methods such as light microscopy combined with AFA (Automatic Feature Analysis) in P-SEM. The spinel formation between recycled MgO-C material and liquid steel is specifically studied in SEM/EDX microscopy. | |
Funding Acknowledgement | The dataset was generated within the framework of the Research Training Group GRK 2802 (project ID: 461482547) funded by the German Research Foundation (DFG). | |
Public project website(s) | https://tu-freiberg.de/en/research/grk2802 | |
Project title | GRK2802_P5_Research into the effect of MgO-C products based on recyclates and environmentally friendly binders on the sulphidic purity of the steels and the spinel formation |