| Autor: |
Steffen Dudczig, Gert Schmidt, Christos G. Aneziris, Christoph Wöhrmeyer, Christopher Parr, Patrick Gehre |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Ceramics, Vol 3, Iss 1, Pp 12-21 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2571-6131 |
| DOI: |
10.3390/ceramics3010002 |
| Popis: |
For more than 20 years, the sidewalls and bottom of steel ladles have been lined with carbon-bonded magnesia (MgO-C) and magnesia-alumina bricks (MAC). The alumina raw materials react with magnesia forming a spinel, which decreases open porosity and slag infiltration. The amount, grain size, and chemistry of the added spinel impact the properties of spinel-containing MgO-C. Corrosion tests have been performed in a steel casting simulator at 1580 °C using 18CrNiMo7-6 steel and Fe-rich slag as corrosion medium. Digital light microscopy and SEM/ EDS (scanning electron microscope with energy dispersive spectroscopy) were used to evaluate the corrosion mechanisms. The metal casting simulator test showed that the addition of CaO-MgO-Al2O3 aggregates results in the highest corrosion resistance against molten steel and synthetic basic slag compared to alumina-rich spinel aggregates. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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