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Ogibayashi, S., Uchimura, M., Isobe, K., Maede, H., Nishihara, Y. and Sato, S. (1990) Improvement of Center Segregation in Continuously Cast Blooms by Soft Reduction in the Final Stage of Solidification. Proceedings of the 6th International Iron and Steel Congress, Nagoya, 271-278.

has been cited by the following article:

• TITLE: Macrosegregation Quality Criteria and Mechanical Soft Reduction for Central Quality Problems in Continuous Casting of Steel

  AUTHORS: Mostafa Omar El-Bealy

  KEYWORDS: Continuous Casting of Steel, Macrosegregation, Centerline Segregation, Macrosegregation Quality Criteria, Mechanical Soft Reduction Technique

  JOURNAL NAME: Materials Sciences and Applications, Vol.5 No.10, August 29, 2014

  ABSTRACT: In order to study the central quality of continuously cast tool steel slabs, the simple model has been developed to simulate the macrosegregation quality criteria. The model calculates different quality criteria such as average macro-segregation level criterion “ASL”, its fluctuation level “FSL” and its segregation quality number “SQN”. These criteria are calculated based on the previous measurements of carbon and sulfur concentrations distributions in final region of spray zones and centerline area of lower and upper slab sides. The effect of mechanical soft reduction Technique “MSR” on the slab centerline quality is examined and analyzed. The model results show that MSR affects the quality of centerline areas significantly by different ways based on the casting speed. The experimental and theoretical results clarify that the qualities of different slab sides are different for all collected samples. The model results show also that the accuracy of the macro-segregation quality criteria increases quantitatively with increasing the number of analyzed segregated elements. Therefore, the macrosegregation quality criteria and their distributions can be considered as the most simple and vital tool to evaluate the various slab qualities. Finally, the mechanism of centerline segregation formation with mechanical soft reduction is discussed in this study.