Detail publikace

Vacuum induction melting and investment casting technologies tailored to near-gamma TiAl alloys

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

Originální název

Vacuum induction melting and investment casting technologies tailored to near-gamma TiAl alloys

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

The present study focuses on vacuum induction melting and investment casting of gamma TiAl intermetallic alloys. The attention is mainly given to a cost-effective melting process in which a primary alloy ingot is re-melted in a ceramic crucible and cast into a ceramic shell mould. 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

Intermetallics, Gamma TiAl, Vacuum Induction Melting, Investment Casting

Autoři

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

Rok RIV

2007

Vydáno

15. 3. 2007

Nakladatel

Trans Tech Publication Ltd

Místo

Switzerland

ISSN

0255-5476

Periodikum

Materials Science Forum

Ročník

2007

Číslo

539-543

Stát

Švýcarská konfederace

Strany od

1463

Strany do

1468

Strany počet

6

BibTex

@article{BUT44485,
  author="Antonín {Dlouhý} and Kateřina {Dočekalová} and Ladislav {Zemčík}",
  title="Vacuum induction melting and investment casting technologies tailored to near-gamma TiAl alloys",
  journal="Materials Science Forum",
  year="2007",
  volume="2007",
  number="539-543",
  pages="1463--1468",
  issn="0255-5476"
}