GRK 2802: Densities, Surface Tensions, and Viscosities of Molten High-Silicon Electrical Steels with Different Silicon Contents
References to related material | https://doi.org/10.1002/srin.202400237 | |
Type of the data | Dataset | |
Type of the data | Image | |
Total size of the dataset | 7178037 | |
Author | Neubert, Lukas | |
Author | Bellé, Matheus Roberto | |
Author | Yamamoto, Taisei | |
Author | Nishi, Tsuyoshi | |
Author | Yamano, Hidemasa | |
Author | Ahrenhold, Frank | |
Author | Volkova, Olena | |
Upload date | 2025-10-24T12:01:55Z | |
Publication date | 2025-10-24T12:01:55Z | |
Publication date | 2025-10-24 | |
Abstract of the dataset | Density, surface tension, and viscosity of various liquid electrical steels are measured at different temperatures, varying in their silicon content between 3 and 6mass%. Density and surface tension are determined using the maximum bubble pressure method, while viscosity is investigated comparatively using a vibrating finger viscometer and an oscillating crucible viscometer. The results are compared with models known from the literature. Based on this, the density of the steel [ρ] = kgm 3 and the surface tension [σ] =Nm 1 can be described as a function of temperature [θ] = °C and silicon content [Si] =mass% using the equations: ρðθ, SiÞ ¼ 1.28 θ 104.18 Si þ 9081.8, σðθ, SiÞ ¼ 10 4 ½ 0.00903 θ2 1.21494 Si2 þ 29.268 θ 1.987 Si 22334 . There is a lack of experimental data in the literature for high-temperature thermophysical properties for electrical steels. This underlines once again the novelty and significance of this study, as the determined thermophysical properties are essential for a wide range of applications. For instance, they are crucial in the production of metallic powders for additive manufacturing by atomization to adjust the properties of the powders precisely. The findings are also important for steelmaking itself, as the corrosion behavior of refractory material can be better determined. | |
Public reference to this page | https://opara.zih.tu-dresden.de/handle/123456789/1722 | |
Publisher | Technische Universität Bergakademie Freiberg | |
Specification of the discipline(s) | 4::43 | |
Title of the dataset | GRK 2802: Densities, Surface Tensions, and Viscosities of Molten High-Silicon Electrical Steels with Different Silicon Contents | |
Project abstract | The focus of this doctoral project is to investigate the interaction of electrical steels (transformer steels), with high-silicate purity ladle slags free of running slag, with MgO-C products based on recyclates and environmentally friendly binders. The formation of ladle glaze can be studied by immersing a MgO-C product in a tracer-labelled slag during an immersion test. Investigations of the thermophysical properties of the liquid, killed/unkilled electrical steels and liquid slag as a function of temperature and SiO2 content, combined with thermodynamic calculations using FactSage software, make it possible to determine their influence on the interaction with MgO-C and ladle glaze formation. The influence of ladle glaze on the oxidic inclusion population, on the pick-up effect (undesirable increase of alloying elements) and reoxidation of the alloying elements is investigated by ladle glaze dissolution in the electric steel melt accompanied by chemical analysis and optical microscopy in combination with AFA (Automatic Feature Analysis) in the P-SEM. Research into the effect of the oxidic, non-metallic inclusions that form from ladle glaze on clogging in the spout nozzle based on recycled Al2O3-C is another focus. | |
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_P4_Interaction of electrical steels with MgO-C products based on recyclates and environmentally friendly binders |