Detail publikace

Investment casting of near-gamma TiAl intermetallic alloys

ZEMČÍK, L. DLOUHÝ, A. DOČEKALOVÁ, K.

Originální název

Investment casting of near-gamma TiAl intermetallic alloys

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

The paper deals with physical and chemical analyses of the evaporation of aluminium from a TiAl melt, with reactions between the melt and the refractories of crucibles, and with reactions between the melt and residual gases in the vacuum furnace chamber. The present study introduces a 1D model of the heat flow in a system composed of a TiAl intermetallic casting, a ceramic shell mould and the vacuum furnace environment. Furthermore, a 1D model of the thermal strain in the casting-mould system during cooling to room temperature is also presented. The parametric study aimed at minimizing thermal stresses provided the optimum initial mould temperatures and cooling kinetics of the system mould-TiAl castings resulted in macroscopically sound castings that were free of macrocracks.

Klíčová slova

gamma TiAl intermetallic alloys, vacuum induction melting, investment casting

Autoři

ZEMČÍK, L.; DLOUHÝ, A.; DOČEKALOVÁ, K.

Rok RIV

2007

Vydáno

3. 9. 2007

Nakladatel

Société Francaise de Metallurgie et des Matériaux

Místo

Paris

Strany od

213

Strany do

218

Strany počet

6

BibTex

@inproceedings{BUT23753,
  author="Ladislav {Zemčík} and Antonín {Dlouhý} and Kateřina {Dočekalová}",
  title="Investment casting of near-gamma TiAl intermetallic alloys",
  booktitle="Proceedings of the 2007 International Symposium on Liquid Metal Processing and Casting",
  year="2007",
  pages="213--218",
  publisher="Société Francaise de Metallurgie et des Matériaux",
  address="Paris"
}