Turbine blade and process for producing this turbine blade

Details Turbine blade and process for producing this turbine blade Turbine blade and process for producing this turbine blade

F - Mech Eng,Light,Heat,Weapons

01

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F01D 5/28 (2006.01) B23P 15/02 (2006.01) C22C 14/00 (2006.01) C22F 1/18 (2006.01)

Patent

CA 2068504

- 12 - 91/038 ABSTRACT OF THE DISCLOSURE The turbine blade contains a casting having a blade leaf (1), blade foot (2) and, if appropriate, blade cover strip (3) and composed of an alloy based on a dopant-containing gamma-titanium aluminide. This turbine blade is to be distinguished by a long lifetime, when used in a turbine operated at medium and high temperatures, and, at the same time, be capable of being produced in a simple way suitable for mass production. This is achieved in that, at least in parts of the blade leaf (1), the alloy is in the form of a material of coarse-grained structure and with a texture resulting in high tensile and creep strength and, at least in parts of the blade foot (2) and/or of the blade cover strip (3), provided if appropriate, is in the form of a material of fine-grained structure and with a ductility increased in relation to the material contained in the blade leaf (1). (single figure)

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