Computing Simulation of Casting Using Titanium Aluminide Intermetallic Alloys

Abstract:

The simulation process of centrifugal casting using titanium aluminide intermetallic alloys has been described in the context of the low-pressure duct turbine blade designed for the gas-turbine engine. Initially, the preliminary theoretical calculations have been performed together with experimental casting when developing the casting production technologies. The obtained results allowed setting a range of the boundary conditions for computing simulation of pouring and solidification. ProCast the computing simulation system for the casting processes has been used. Various alternatives of the casting layout in the mold as well as the gating system configurations have been examined by means of this system. In the course of simulation process such faults have been detected as formation of shrinkages into the shroud platform and (or) blade footing; or significant decrease in technological yield when the risers’ dimensions expand or the casts’ number decreases in the mold. Considering the results of the performed computer experiments, the most efficient gating system has been ultimately defined to obtain the casts using titanium aluminide intermetallic alloys by centrifugal casting.

• Periodical: Materials Science Forum (Volume 843)
• Pages: 213-216
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.843.213
• Online since: February 2016
• Authors: B.A. Kulakov*, V.K. Dubrovin, A.V. Karpinskiy
• Keywords: Centrifugal Casting, Computing Simulation, Gas-Turbine Engine, Gating System, Intermetallics, Titanium Alloy, Turbine Blade

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