10.1007/s40095-015-0181-1

Flow, heat and mass transfers during solidification under traveling/rotating magnetic field

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  • Wang Xiaodong*1,
  • Fautrelle Yves2,
  • Moreau René2,
  • Etay Jacqueline2,
  • Bianchi Ana-Maria3,
  • Baltaretu Florin3,
  • Na Xianzhao4,
  1. College of Material Science and Opto-electronic Technology, University of Chinese Academic Sciences, Beijing, 100049, CN
  2. CNRS-SIMAP-EPM PHELMA, Saint Martin d’Hères Cedex, 38402, FR
  3. UTC Bucharest, Bucharest, RO
  4. State Key Laboratory of Advanced Steel Processing and Products, Central Iron and Steel Research Institute, Beijing, 100081, CN
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Published in Issue 2015-06-10

How to Cite

Xiaodong, W., Yves, F., René, M., Jacqueline, E., Ana-Maria, B., Florin, B., & Xianzhao, N. (2015). Flow, heat and mass transfers during solidification under traveling/rotating magnetic field. International Journal of Energy and Environmental Engineering, 6(4 (December 2015). https://doi.org/10.1007/s40095-015-0181-1
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Abstract

Abstract In this paper, we present the relative problem of heat and mass transfer to adopt a means of imposing an electromagnetic field to improve solutal segregation (macrosegregation) during liquid metal solidification. A well-validated, quasi-two-dimensional solidifying experimental benchmark was introduced, which allowed us to observe the temperature field evolution and to provide the evident clues of phase transformation. We also observed naturally formed solutal segregations in the post-mortem sample. The idea of imposing a modulated magnetic field while optimizing modulation frequency and having a cable to suppress solutal segregation was confirmed by multiscale numerical modeling. Magnetohydrodynamics, flow driven by a modulated traveling magnetic field, was experimentally studied. Furthermore, a more practical cylindrical shape of liquid metal bulk driven by a permanent helical magnetic field has been achieved. The spatial flow behaviors suggested an appropriate magnetic field with optimized electromagnetic parameters for obtaining high-quality, low-defect casting products.

Keywords

  • Heat and mass transfer,
  • Solidification,
  • Magnetic field,
  • Lorentz force,
  • Segregation
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References

  1. Flemings and Nereo (1967) Macrosegregation: Part 1
  2. Hultgren (1973) A and V segregation in killed steel ingots
  3. Engström and Fredriksson (1983) On the mechanism of macrosegregation formation in continuously cast steels (pp. 3-12)
  4. Sarazin and Hellawell (1988) Channel formation in Pb-Sn, Pb-Sb, and Pb-Sn-Sb alloy ingots and comparison with the system NH4Cl-H2O https://doi.org/10.1007/BF02645156
  5. Wang et al. (2006) Control of the macrosegregation during solidification of a binary alloy by means of a AC magnetic field (pp. 163-168) https://doi.org/10.4028/www.scientific.net/MSF.508.163
  6. Wang et al. (2009) A periodically reversed flow driven by a modulated traveling magnetic field. Part I: Experiments with GaInSn (pp. 82-90) https://doi.org/10.1007/s11663-008-9176-0
  7. Wang et al. (2009) A periodically reversed flow driven by a modulated traveling magnetic field. Part II: theoretical model (pp. 104-113) https://doi.org/10.1007/s11663-008-9210-2
  8. Wang and Fautrelle (2009) An investigation of the influence on tin solidification using a quasi- two- dimensional experimental benchmark (pp. 5624-5633) https://doi.org/10.1016/j.ijheatmasstransfer.2009.05.030
  9. Hachani et al. (2012) Experimental analysis of the solidification of Sn–3 wt.%Pb alloy under natural convection (pp. 1986-1996) https://doi.org/10.1016/j.ijheatmasstransfer.2011.11.054
  10. Ciobanas and Fautrelle (2007) Ensemble averaged multiphase Eulerian model for columnar/equiaxed solidification of a binary alloy: I. The mathematical model (2007) https://doi.org/10.1088/0022-3727/40/12/029
  11. Ciobanas and Fautrelle (2007) Ensemble averaged multi-phase Eulerian model for columnar/equiaxed solidification of a binary alloy: II. Simulation of the columnar-to-equiaxed transition (CET) https://doi.org/10.1088/0022-3727/40/14/031
  12. Eckert et al. (2007) Efficient melt stirring using pulse sequences of a rotating magnetic field: part I. Flow field in a liquid metal column (pp. 977-988) https://doi.org/10.1007/s11663-007-9096-4
  13. Willers et al. (2008) Efficient melt stirring using intermittent or alternating rotating magnetic fields: II-Application during Solidification of Al-Si Alloys (pp. 304-316) https://doi.org/10.1007/s11663-008-9126-x
  14. Wang et al. (2013) Liquid metal flow driven by a modulated helical magnetic field (pp. 544-552) https://doi.org/10.3724/SP.J.1037.2012.00690