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Numerical simulation of the effect of ultra-strong transverse static magnetic field upon the solidification transport behaviors of Ti alloy casting

  • Yunfeng Bai*
  • , Darning Xu
  • , Jingjie Guo
  • , Bangsheng Li
  • , Hengzhi Fu
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

The simulation of the solidification transport process of TiAl alloy blade-like casting with a solidification shrinkage under the different transverse magnetic fields (0∼11T) was carried out. The results show that although the liquid flow in bulk liquid region can be suppressed efficiently, the feeding flow in the mushy zone caused by the solidification shrinkage/contraction can not be suppressed even under the ultra-strong magnetic field of 11T, which indicates that the driven force of the feeding flow by the volume shrinkage is much stronger than that caused by the gravity. The natural convection can delay the directional solidification process, while the static magnetic field accelerates it to some extent by weakening the natural convection and changes the heat and mass transfer to a diffusion type. The natural convection can lead to horizontal segregation.

Original languageEnglish
Pages (from-to)175
Number of pages1
JournalXiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume34
Issue numberSUPPL. 3
StatePublished - Oct 2005
Externally publishedYes

Keywords

  • Electromagnetic braking
  • Liquid flow
  • Solidification shrinkage
  • TiAl alloy
  • Ultra-strong static magnetic field

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