Modelling of convection during solidification of metal and alloys

被引：25
|
作者：
Singh, AK [1 ]
Pardeshi, R [1 ]
Basu, B [1 ]
机构：
[1] Tata Res Dev & Design Ctr, Pune 411013, Maharashtra, India
来源：
SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES | 2001年 / 26卷 / 1-2期
关键词：
double-diffusive convection; solidification of metals and alloys; modelling of solidification; mushy region;
D O I：
10.1007/BF02728483
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The role of convection during solidification is studied with the help of a mathematical model. The effect of various mush models on convection and consequent macrosegregation is examined with the help of numerical simulations. The predicted macrosegregation profiles are compared with published experimental data. Subsequently, the importance of proper auxiliary relationship for thermo-solutal coupling in the mushy region is highlighted through some careful numerical simulations. Finally, the role of material parameters on double-diffusive convection is illustrated through comparative study of solidification of aqueous ammonium chloride, iron-carbon and lead-tin binary systems. Important results of these studies are presented and discussed.
引用
收藏
页码：139 / 162
页数：24
相关论文
共 50 条
  • [21] Modeling of thermosolutal convection during Bridgman solidification of semiconductor alloys in relation with experiments
    Stelian, C
    Duffar, T
    [J]. JOURNAL OF CRYSTAL GROWTH, 2004, 266 (1-3) : 190 - 199
  • [22] DOUBLE-DIFFUSIVE CONVECTION DURING THE SOLIDIFICATION OF PB-TL ALLOYS
    BILLIA, B
    [J]. PROCEEDINGS OF THE VIITH EUROPEAN SYMPOSIUM ON MATERIALS AND FLUID SCIENCES IN MICROGRAVITY, 1989, 295 : 209 - 218
  • [23] Thermosolutal convection and macrosegregation during directional solidification of TiAl alloys in centrifugal casting
    Fernandez, Martin Cisternas
    Zaloznik, Miha
    Combeau, Herve
    Hecht, Ulrike
    [J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2020, 154
  • [24] INCIDENCE OF CONVECTION DURING SOLIDIFICATION
    SHARP, RM
    HELLAWELL, A
    [J]. JOURNAL OF CRYSTAL GROWTH, 1972, 12 (03) : 261 - +
  • [25] COMPOSITIONAL CONVECTION IN THE SOLIDIFICATION OF BINARY-ALLOYS
    EMMS, PW
    FOWLER, AC
    [J]. JOURNAL OF FLUID MECHANICS, 1994, 262 : 111 - 139
  • [26] Modelling of solidification in Al-alloys
    Saunders, N
    [J]. LIGHT METALS 1997, 1997, : 911 - 918
  • [27] The effects of natural, forced and thermoelectric magnetohydrodynamic convection during the solidification of thin sample alloys
    Kao, A.
    Shevchenko, N.
    Roshchupinka, O.
    Eckert, S.
    Pericleous, K.
    [J]. MCWASP XIV: INTERNATIONAL CONFERENCE ON MODELLING OF CASTING, WELDING AND ADVANCED SOLIDIFICATION PROCESSES, 2015, 84
  • [28] Macrosegregation caused by thermosolutal convection during directional solidification of Pb-Sb alloys
    Ojha, SN
    Ding, G
    Lu, Y
    Reye, J
    Tewari, SN
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1999, 30 (08): : 2167 - 2171
  • [29] A numerical investigation of steady convection in mushy layers during the directional solidification of binary alloys
    Schulze, TP
    Worster, MG
    [J]. JOURNAL OF FLUID MECHANICS, 1998, 356 : 199 - 220
  • [30] Stability of Solutal Convection in a Gravity Modulated Mushy Layer During the Solidification of Binary Alloys
    S. K. Pillay
    S. Govender
    [J]. Transport in Porous Media, 2005, 60 : 183 - 197
12345