BI-CAST TURBINE ROTOR DISKS AND METHODS OF FORMING SAME

摘要

A bi-cast turbine rotor disk and method of forming the same are provided. The disk includes a ring and a blade. The ring comprises a superalloy that includes a plurality of elements, and the blade extends from the ring. The blade comprises a non-metallic ceramic matrix composite, and at least one element from the superalloy of the ring is diffused into the non-metallic ceramic matrix composite of the blade.

主权项

1. A method of forming a bi-cast turbine rotor disk, the method comprising:
forming a blade from a non-metallic ceramic matrix composite; placing an end of the blade in a ring segment mold configured to form an arc segment of a ring section of the turbine rotor disk; and performing a casting process with the ring segment mold to form the arc segment of the turbine rotor disk from a superalloy.