Abstract
There is a growing interest in using gamma titanium aluminide alloys for high performance applications in the aerospace and automotive industries. Investment casting is considered to be the most cost-effective production technique, particularly for intricate thin wall components such as turbine blades, but further research is required to develop a robust process. This paper describes recent research in which computer modelling and practical experimentation have been combined to understand and optimise the high power Induction Skull Melting process and various mould filling techniques with the ultimate target of producing defect-free castings.

Key words
melting, casting, TiAl

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