Method of producing a material based on a doped intermetallic co

Details Method of producing a material based on a doped intermetallic co Method of producing a material based on a doped intermetallic co

1993-12-13

1995-05-16

Walsh, Donald P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Consolidation of powder prior to sintering

419 6, 419 8, 419 23, 419 29, 419 32, 419 48, 419 49, 419 54, B22F 316

Patent

active

054158311

ABSTRACT:
The method serves to produce a material based on a doped intermetallic compound. In carrying out the method, at least two differently doped powders each based on the intermetallic compound are selected. One of the two powders predominantly has coarse-grained particles. On the other hand, another powder is formed from comparatively fine-grained particles composed of a material having a lower creep strength but a higher ductility than the material of the coarse-grained powder. The at least two powders are mixed with one another in a ratio serving to establish a desired mixed microstructure and then hot-compacted and heat-treated to form the material.
Material produced by this method is suitable for components which are exposed to high mechanical loads at high temperatures, such as, in particular, gas-turbine blades or turbine wheels of turbo chargers.

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