Shaped part made of an intermetallic gamma titanium aluminide material, and production method
AssigneePlansee SE
InventorsAndreas Hoffmann, Heinrich Kestler
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Abstract
A shaped part or article of manufacture is formed of a selected gamma titanium aluminide alloy with outstanding mechanical properties which can be produced particularly economically. First, a semi-finished article is formed in a hot forming process with a degree of deformation of greater than 65%. Then the semi-finished article is shaped with the alloy being in a solid-liquid phase by applying mechanical forming forces during at least part of the shaping process.
Claims28
A method of producing a shaped part of intermetallic gamma titanium aluminide alloy composed of 41-49 atom % Al with a grain size d95<300 μm and a pore volume of <0.2 vol. %, the method which comprises the following method steps:
- producing a semi-finished article with a hot forming process having a degree of deformation >65%;
- and
- shaping the semi-finished article in a solid-liquid phase of the alloy in a mold by applying mechanical forming forces during at least part of the shaping process.
A shaped part, comprising:
- an intermetallic gamma titanium aluminide alloy composed of 41-49 atom % Al with a grain size d95<300 μm and a pore volume of <0.2 vol. %;
- preshaped into a semi-finished article using a hot forming process with a degree of deformation of greater than 65%;
- and
- molded into a finished shape from a solid-liquid phase of said alloy by at least partial application of mechanical forming forces.
Dependencies are inferred from the claim text.