Centerline Segregation of Continuously Cast Slabs Influence on Microstructure and Fracture Morphology
Keywords:
continuously cast slab, centerline segregation, sulphide eutectics, microstructure, liquation, fracture surface morphologyAbstract
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.
Downloads
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.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2005 The Journal of Metals, Materials and Minerals (JMMM)
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Authors who publish in this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.