Publication detail
Investment casting of gamma TiAl intermetallics
ZEMČÍK, L. Dlouhý A.
English title
Investment casting of gamma TiAl intermetallics
Type
Paper in proceedings (conference paper)
Language
en
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 in English
castings, intermetallics
Released
2005-09-28
Publisher
UCEAT Chamber of Metallurgical Engineers
Location
Ankara
ISBN
975-395-941-9
Book
12th International Metallurgy-Materials Congress and Fair
Pages from–to
1–
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"
}