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Impact of MgO-C with CMA- and Nanocarbon Addition on Steel Cleanliness

  • Applications and Engineering
  • Published:
Interceram - International Ceramic Review

Abstract: Non-metallic inclusions in molten steel mainly originate from refractory-slag-steel interactions during continuous casting and influence its cleanliness remarkably. The objective of this paper was to apply a new approach of minimising non-metallic inclusions by interaction with a suitable MgO-C-based lining material. With the purpose of investigating the efficiency of MgO-C and MgO-CMA-C to reduce endogenous inclusions, immersion tests were performed in a metal casting simulator at 1650 °C. Investigations of the inclusions were carried out by a special automatic SEM.

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References

  1. Zhang, L.: Nucleation, growth, transport, and entrapment of inclusions during steel casting. JOM 65 (2013) [9] 1138-1144

  2. Apelian, D., Mutharasan, R., Ali, S.: Removal of inclusions from steel melts by filtration. J Mater Sci. 20 (1985) [10] 3501-3514

  3. Mapelli, C.: Non-metallic inclusions and clean steel. Metall Ital. 100 (2008) [6] 43-52

  4. da Costa e Silva, A.L.V.: Non-metallic inclusions in steels - origin and control. J Mater Res Technol. 7 (2018) [3] 283-299

  5. Poirier, J.: A review: influence of refractories on steel quality. Metall Res Technol. 112 (2015) [4] 410

  6. Beskow, K., Tripathi, N., Nzotta, M., Sandberg, A., Sichen, D.: Impact of slag-refractory lining reactions on the formation of inclusions in steel. Ironmak Steelmak. 31 (2004) 514-518

  7. Deng, Z., Zhu, M., Sichen, D.: Effect of refractory on nonmetallic inclusions in Al-killed Steel. Metall Mater Trans B. 47 (2016) [5] 3158-3167

  8. Mantovani, M.C., Moraes, L.R., da Silva, R.L., Cabral, E.F., Possente, E.A., Barbosa, C.A., Ramos, B.P.: Interaction between molten steel and different kinds of MgO based tundish linings. Ironmak Steelmak. 40 (2013) [5] 319-325

  9. Jansson, S., Brabie, V., Jönsson, P.: Magnesia-carbon refractory dissolution in Al killed low carbon steel. Ironmak Steelmak. 35 (2006) [5] 389-397

  10. Tripathi, N.N., Nzotta, M., Sandberg, A., Sichen, D.: Effect of ladle age on formation of non-metallic inclusions in ladle treatment. Ironmak Steelmak. 31 (2004) [3] 235-240

  11. Storti, E., Farhani, M., Aneziris, C.G., Wöhrmeyer, C., Parr, C.: Calcium aluminate reactive coatings on carbon-bonded alumina filters for clean steel approaches. steel Res Int. 88 (2017) [11] 1700247

  12. Fruhstorfer, J., Dudczig, S., Rudolph, M., Schmidt, G., Brachhold, N., Schöttler, L., Rafaja, D., Aneziris, C.G.: Interface analyses between a case-hardened ingot casting steel and carbon-containing and carbon-free refractories. Metall Mater Trans B. 49 (2018) [3] 1499-1521

  13. Falsetti, L.O.Z., Muche, D.N.F., dos Santos Junior, T., Pandolfelli, V.C.: Thermodynamics of smart bubbles: The role of interfacial energies in porous ceramic production and non-metallic inclusion removal. Ceram Int. 47 (2021) [Part A] 14216-14225

  14. Pagliosa, C., Souza, P.V., Hama, N., Wöhrmeyer, C., Zetterström, C., Evangelista, P.C.: Improvement of MAC bricks for steel ladle with CaO-MgO-Al2O3 aggregate: a new perspective for cement application. In: Proceeding O046, UNITECR 2017 - 15th Biennial Worldwide Congress. (2017) 169-172

  15. Gehre, P., Wöhrmeyer, C., Aneziris, C.G., Parr, C.: Functional spinel-binder based additives for improved MgO-C performance in ladle applications. Refract Worldforum. 9 (2017) [3] 83-88

  16. Preisker, T., Gehre, P., Schmidt, G., Aneziris, C.G., Wöhrmeyer, C., Parr, C.: Kinetics of the formation of protective slag layers on MgO-MgAl2O4-C ladle bricks determined in laboratory. Ceram Int. 46 (2020) [1] 452-459

  17. Preisker, T., Gehre, P., Aneziris, C.G., Wöhrmeyer, C., Parr, C.: Impact of melt phase formation on the high-temperature behaviour of MgO-CMA-C refractories. Refract Worldforum. 11 (2019) [4] 73-77

  18. Gehre, P., Schmidt, A., Dudczig, S., Hubálková, J., Aneziris, C.G., Child, N., Delaney, I., Rancoule, G., DeBastiani, D.: Interaction of slip- and flame-spray coated carbon-bonded alumina filters with steel melts. J Am Ceram Soc. 101 (2018) [7] 3222-3233

  19. Ali, S., Mutharasan, R., Apelian, D.: Physical refining of steel melts by filtration. Metall. Trans. B 16 (1985) 725-742

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Acknowledgment

The authors would like to thank the German Research Foundation (DFG) for supporting this investigation through the Collaborative Research Center 920 "Multi-Functional Filters for Metal Melt Filtration - A Contribution toward Zero Defect Materials", subproject C01 (Project-ID 169148856). Furthermore, they would like to thank Florian Kerber for his development of a new evaluation routine of the ASPEX results in the framework of the Collaborative Research Center 920.

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Gehre, P., Preisker, T., Dudczig, S. et al. Impact of MgO-C with CMA- and Nanocarbon Addition on Steel Cleanliness. Interceram. - Int. Ceram. Rev. 70, 26–31 (2021). https://doi.org/10.1007/s42411-021-0461-0

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  • DOI: https://doi.org/10.1007/s42411-021-0461-0

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