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

被引：7
作者：
Xiaodong W. [1 ]
Yves F. [2 ]
René M. [2 ]
Jacqueline E. [2 ]
Ana-Maria B. [3 ]
Florin B. [3 ]
Xianzhao N. [4 ]
机构：
[1] College of Material Science and Opto-electronic Technology, University of Chinese Academic Sciences, Beijing
[2] CNRS-SIMAP-EPM PHELMA, BP75, Saint Martin d’Hères Cedex
[3] UTC Bucharest, bd. Pache Protopopescu, Bucharest
[4] State Key Laboratory of Advanced Steel Processing and Products, Central Iron and Steel Research Institute, Beijing
来源：
Int. J. Energy Environ. Eng. | / 4卷 / 367-373期
基金：
中国国家自然科学基金;
关键词：
Heat and mass transfer; Lorentz force; Magnetic field; Segregation; Solidification;
D O I：
10.1007/s40095-015-0181-1
中图分类号：
学科分类号：
摘要：
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. © 2015, The Author(s).
引用
收藏
页码：367 / 373
页数：6
相关论文
共 14 条
  • [1] Flemings M.C., Nereo G.E., Macrosegregation: Part 1, Trans. Met. Soc. AIME, 239, (1967)
  • [2] Hultgren A., A and V segregation in killed steel ingots, Scand. J. Metall, 2, (1973)
  • [3] Engstrom G., Fredriksson H., On the mechanism of macrosegregation formation in continuously cast steels, Scand. J. Metall, 12, pp. 3-12, (1983)
  • [4] Sarazin J.R., Hellawell A., Channel formation in Pb-Sn, Pb-Sb, and Pb-Sn-Sb alloy ingots and comparison with the system NH<sub>4</sub>Cl-H<sub>2</sub>O, Metall. Trans, 19A, (1988)
  • [5] Wang X.D., Ciobanas A., Baltaretu F., Bianchi A.M., Fautrelle Y., Control of the macrosegregation during solidification of a binary alloy by means of a AC magnetic field, Mater. Sci. Forum, 508, pp. 163-168, (2006)
  • [6] Wang X.D., Fautrelle Y., Etay J., Moreau R., A periodically reversed flow driven by a modulated traveling magnetic field. Part I: Experiments with GaInSn, Metall. Mater. Trans. B, 40B, pp. 82-90, (2009)
  • [7] Wang X.D., Moreau R., Etay J., Fautrelle Y., A periodically reversed flow driven by a modulated traveling magnetic field. Part II: theoretical model, Metall. Mater. Trans. B, 40B, pp. 104-113, (2009)
  • [8] Wang X.D., Fautrelle Y., An investigation of the influence on tin solidification using a quasi- two- dimensional experimental benchmark, Int. J. Heat Mass Transfer, 52, pp. 5624-5633, (2009)
  • [9] Hachani L., Saadi B., Wang X.D., Fautrelle Y., Et al., Experimental analysis of the solidification of Sn–3 wt.%Pb alloy under natural convection, J. Heat Mass Transfer, 52, pp. 1986-1996, (2012)
  • [10] Ciobanas A.I., Fautrelle Y., Ensemble averaged multiphase Eulerian model for columnar/equiaxed solidification of a binary alloy: I. The mathematical model (2007), J. Phys. D Appl. Phys, 40, (2007)
12