Numerical simulation of counter gravity casting of TiAl blades

Y. D. Chu, H. Chang, Y. J. Zhang, H. C. Kou, H. Zhong, J. S. Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The mould filling process and solidification grain structure of TiAl blade by counter gravity casting have been simulated. The fluid field results indicate that an appropriate size of gate can avoid the formation of the regions of jet and vortex. The pouring temperature and mould temperature have no significant effects on the mould filling rate, but will benefit the stable filling of the molten metal; while the pressure rise rate has apparent influences on the filling of the mould. The full columnar grain structure is obtained by a three-dimensional cellular automaton model coupled with finite-element heat flow calculation.

Original languageEnglish
Title of host publicationTi 2011 - Proceedings of the 12th World Conference on Titanium
Pages1779-1782
Number of pages4
StatePublished - 2012
Event12th World Conference on Titanium, Ti 2011 - Beijing, China
Duration: 19 Jun 201124 Jun 2011

Publication series

NameTi 2011 - Proceedings of the 12th World Conference on Titanium
Volume3

Conference

Conference12th World Conference on Titanium, Ti 2011
Country/TerritoryChina
CityBeijing
Period19/06/1124/06/11

Keywords

  • Casting
  • Counter gravity
  • Numerical simulation
  • TiAl alloys

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