Modelling of Heat Transfer, Dendrite Microstructure and Grain Size in Continuous Casting of Steels

被引：14

作者：

Karlinski de Barcellos, V. ^{[1
]}

Lopes da Silva Gschwenter, V. ^{[1
]}

Kytonen, H. ^{[3
]}

Alexandre dos Santos, C. ^{[2
]}

Alvares Spim, J. ^{[1
]}

Louhenkilpi, S. ^{[3
]}

Miettinen, J. ^{[3
]}

机构：

[1] Univ Fed Rio Grande do Sul, Foundry Lab LAFUN, Ctr Technol, BR-91501970 Porto Alegre, RS, Brazil

[2] Pontifical Catholic Univ Rio Grande Sul PUCRS, BR-90619900 Porto Alegre, RS, Brazil

[3] Aalto Univ, Met Lab, FI-02150 Espoo, Finland

来源：

STEEL RESEARCH INTERNATIONAL | 2010年 / 81卷 / 06期

关键词：

solidification; heat transfer; dendrite arm spacing; grain size; SOLIDIFICATION; MICROSEGREGATION; PARAMETERS; MORPHOLOGY; BILLETS; CARBON;

D O I：

10.1002/srin.201000026

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

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.

引用

页码：461 / 471

页数：11

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