NUMERICAL ANALYSIS OF THE INFLUENCE OF MELTING AND APPLICATION OF ELECTROMAGNETIC STIRRING PRIOR TO SOLIDIFICATION ON MACROSEGREGATION FORMATION DURING CASTING OF A BINARY ALLOY

被引：0
作者：
Tveito, Knut Omdal [1 ]
M'Hamdi, Mohammed [1 ]
Combeau, Herve
Zaloznik, Miha
Zaidat, Kader
Wang, Xiaodong
Saadi, Bachir
Fautrelle, Yves
机构：
[1] NTNU, Dept Mat Technol, N-7491 Trondheim, Norway
来源：
CFD MODELING AND SIMULATION IN MATERIALS PROCESSING | 2012年
关键词：
Macrosegregation; Solidification; Melting; Electromagnetic stirring;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Numerical simulations of macrosegregation formation during horizontal solidification of a hypoeutectic Sn-Pb alloy in a rectangular cavity is presented and compared to experimental results. The experiment involves a melting phase, a holding stage at constant temperature with/without application of electromagnetic stirring, and finally solidification. We simulate all stages of the experiment and study the segregation of Pb throughout the experiment. A two-phase volume averaged model is used for the numerical simulations, accounting for thermo-solutal convection and assuming perfect microscopic mixing (lever rule). The influence of the melting phase and the electromagnetic stirring is studied with different cases to illustrate the consequences on the flow pattern and Pb segregation. The numerical simulations are compared to the experimental data and the impact of chemical inhomogeneities prior to solidification on macrosegregation formation is discussed.
引用
收藏
页码：253 / 260
页数：8
相关论文
共 6 条
  • [1] Call for contributions to a numerical benchmark problem for 2D columnar solidification of binary alloys
    Bellet, M.
    Combeau, H.
    Fautrelle, Y.
    Gobin, D.
    Rady, M.
    Arquis, E.
    Budenkova, O.
    Dussoubs, B.
    Duterrail, Y.
    Kumar, A.
    Gandin, C. A.
    Goyeau, B.
    Mosbah, S.
    Zaloznik, M.
    [J]. INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2009, 48 (11) : 2013 - 2016
  • [2] Hachani L., 2011, INT J HEAT IN PRESS
  • [3] OBSERVATIONS OF INGOT MACROSEGREGATION ON MODEL SYSTEMS
    HEBDITCH, DJ
    HUNT, JD
    [J]. METALLURGICAL TRANSACTIONS, 1974, 5 (07): : 1557 - 1564
  • [4] A quasi two-dimensional benchmark experiment for the solidification of a tin-lead binary alloy
    Wang, Xiao Dong
    Petitpas, Patrick
    Garnier, Christian
    Paulin, Jean-Pierre
    Fautrelle, Yves
    [J]. COMPTES RENDUS MECANIQUE, 2007, 335 (5-6): : 336 - 341
  • [5] An investigation of the influence of natural convection on tin solidification using a quasi two-dimensional experimental benchmark
    Wang, Xiaodong
    Fautrelle, Yves
    [J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2009, 52 (23-24) : 5624 - 5633
  • [6] A Periodically Reversed Flow Driven by a Modulated Traveling Magnetic Field: Part II. Theoretical Model
    Wang, Xiaodong
    Moreau, Rene
    Etay, Jacqueline
    Fautrelle, Yves
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2009, 40 (01): : 104 - 113
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