Centerline Segregation of Continuously Cast Slabs Influence on Microstructure and Fracture Morphology

Authors

  • Martin Fujda Department of Materials Science, Faculty of Metallurgy, Technical University of Košice

Keywords:

continuously cast slab, centerline segregation, sulphide eutectics, microstructure, liquation, fracture surface morphology

Abstract

Metallurgical reasons are sought to explain a centerline segregation consisting of additives and impurities in continuously cast slabs of low carbon steel. The influence of segregation on the microstructure and  fracture surface Morphology of specimens cut out from the center of the slab was analyzed. The accumulation of sulphidic inclusions and liquations in the center zone of the slab is a typical sign of the centerline segregation. Carbon segregation was observed together with surface active additives (Sn, Sb, As) into the center of the slab with ferrite-pearlite microstructure and different grains in size and shape.

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References

Kuchař, L. 1988. Metalurgie čistých kovů, část I., Skript. VŠB, Ostrava : 338.

Matsumiya, T., Kajioka, H., Mizoguchi, S., Ueshima, Y. and Esaka, H. : 1984 Transactions ISIJ, 24 : 873 – 882.

Schneider, M. C., and Beckermann, C. 1995. Simulation of Micro-/Macrosegregation During The Solidification of A Low-Alloy Steel. ISIJ International, 35 : 665 – 672.

Ueshima, Y., Mizoguchi, S, Matsumiya, T and Kajioka, H. : 1986. Metallurgical Transactions. 17B : 845 – 859.

Morita, Z. and Tanaka, T. 1983. Transactions ISIJ 23 : 824 – 833.

Sladkoštejev, V.T., Potanin, P.V. and Suladze, I.S. 1974 Nepreryvnaja razlivka stali na radialnych ustanovkach, Moskva, Metallurgia : 288.

Sasaki, K., Sugitani, Y. and Ishimura, S. 1980. Tetsu to Hagané. 1 : 43 – 52.

Sasaki, K., Sugitani, Y. and Ishimura, S. 1980. Tetsu to Hagané. 1 : 53 – 62.

Mizukami, H., Komatsu, M., Kitagawa, T. and Kawakami, K. 1984. Transactions ISIJ. 24 : 923 – 930.

Tsubakihara, O., et. al. 1985. Transactions ISIJ, 25 : 686 – 706.

Mišičko, R. and Longauerová, M. 1997 Hutnícke listy, č.1 : 11 – 13.

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Published

2022-08-19

How to Cite

[1]
M. Fujda, “Centerline Segregation of Continuously Cast Slabs Influence on Microstructure and Fracture Morphology”, J Met Mater Miner, vol. 15, no. 2, pp. 45–51, Aug. 2022.

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Section

Original Research Articles