Behavior of semi-macroscopic segregation in continuously cast slabs and technique for reducing the segregation.
スポンサーリンク
概要
- 論文の詳細を見る
The authors highlighted the small spot segregation present in the center portion of a continuously cast slab, i.e., the semi-macroscopic segregation, and carried out various studies on the subject.The center portion of daily-cast slabs was first investigated in detail. The results reveal that the semi-macroscopic segregation is present in high-temperature cast slabs as well as in low-temperature cast ones. Concentrations of chemical components were measured by EPMA to demonstrate the far higher degree of segregation of semi-macroscopic segregation as compared with that of microscopic segregation, and the dependency of segregation ratio on the size of spot-segregation.Application of soft-reduction casting proved the possibility of reducing the spot size of semi-macroscopic segregation, decreasing the number of spots, and minimizing segregation of constituent elements. By driving a steel pin enclosing tracer element into the center portion of slab, application of soft-reduction casting proved prevention of molten steel from flowing toward the end of solidification crater, resulting in a reduced semi-macroscopic segregation.
- The Iron and Steel Institute of Japanの論文
The Iron and Steel Institute of Japan | 論文
- The Evolution of Precipitates in Nb-Ti Microalloyed Steels during Solidification and Post-solidification Cooling
- Short Contribution to the Study of the Washing Effect in Electromagnetic Stirrers for Continuous Casting
- Nitrogen Bearing Martensitic Stainless Steels : Microstructure and Properties
- A Two-dimensional Finite Element Thermomechanical Approach to a Global Stress-Strain Analysis of Steel Continuous Casting
- Transformation Behavior and Microstructures in Ultra-low Carbon Steels