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Modelling of Heat Transfer, Dendrite Microstructure and Grain Size in Continuous Casting of Steels
Author(s) -
Karlinski de Barcellos V.,
Lopes da Silva Gschwenter V.,
Kytönen H.,
Alexandre dos Santos C.,
Alvares Spim J.,
Louhenkilpi S.,
Miettinen J.
Publication year - 2010
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.201000026
Subject(s) - dendrite (mathematics) , superheating , microstructure , materials science , continuous casting , heat transfer , grain size , casting , metallurgy , thermal , mechanics , directional solidification , thermodynamics , geometry , mathematics , physics
The dendrite arm spacing and grain size in continuous casting has been studied by mathematical modelling and experimental measurements. Two in‐house tools have been used in the study. The heat transfer is calculated by the model called TEMPSIMU and the solidification as well as the microstructural phenomena by the thermodynamic‐kinetic software called IDS. The models are validated by comparison the calculated results with experiments from steel plants. In continuous casting, the solidification structure is also influenced by process parameters. In this study the effect casting speed, superheat and secondary cooling on arm spacings and grain size is also studied. The in‐house models and the obtained results are presented in this paper. Using the developed models, the heat transfer and microstructure can be controlled more accurately.