Publication detail

Investment Casting Technology Tailored to Near-Gamma TiAl Alloys

DLOUHÝ, A., ZEMČÍK, L.

Original Title

Investment Casting Technology Tailored to Near-Gamma TiAl Alloys

Type

presentation

Language

English

Original Abstract

The present study reports on the investment casting of near-gamma TiAl intermetallics. The attention is paid mainly to the minimization of thermal mismatch strains generated in an intermetallic cast and a ceramic shell mould during cooling to room temperature. The mismatch strains stem from different thermal expansion coefficients of near-gamma TiAl alloy and the mould ceramics. A numerical modeling and optimization helped to spot those process parameters that are most influential with respect to the stress state in the cast-mould system. The optimization based on a sequential technique and on a modified random search routine yielded a processing window in which sound casts can be fabricated.

Key words in English

TiAl Intermetallics, Investment casting

Authors

DLOUHÝ, A., ZEMČÍK, L.

RIV year

2005

Released

30. 5. 2005

Publisher

University of Applied Sciences Aargau

Location

Aargau

Pages from

146

Pages to

154

Pages count

9

BibTex

@misc{BUT63414,
  author="Antonín {Dlouhý} and Ladislav {Zemčík}",
  title="Investment Casting Technology Tailored to Near-Gamma TiAl Alloys",
  booktitle="First Invited COST 526 Conference on Automatic Process Optimization in Materials Technology",
  year="2005",
  series="1",
  edition="1",
  pages="9",
  publisher="University of Applied Sciences Aargau",
  address="Aargau",
  note="presentation"
}