Publication detail

Investment casting of gamma TiAl intermetallics

ZEMČÍK, L., Dlouhý A.

Original Title

Investment casting of gamma TiAl intermetallics

Type

conference paper

Language

English

Original Abstract

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.

Keywords

castings, intermetallics

Authors

ZEMČÍK, L., Dlouhý A.

RIV year

2005

Released

28. 9. 2005

Publisher

UCEAT Chamber of Metallurgical Engineers

Location

Ankara

ISBN

975-395-941-9

Book

12th International Metallurgy-Materials Congress and Fair

Edition

1

Edition number

1

Pages from

1

Pages to

8

Pages count

8

BibTex

@inproceedings{BUT21369,
  author="Ladislav {Zemčík} and Antonín {Dlouhý}",
  title="Investment casting of gamma TiAl intermetallics",
  booktitle="12th International Metallurgy-Materials Congress and Fair",
  year="2005",
  series="1",
  number="1",
  pages="8",
  publisher="UCEAT Chamber of Metallurgical Engineers",
  address="Ankara",
  isbn="975-395-941-9"
}