Design,Fabrication,and Evaluation of GATORIZED (trade name) Ceramic-Wrought Alloy Attachment Concepts.

摘要

The attachment of hot pressed silicon nitride material (HPSN) ceramic blades to a wrought superalloy disk, utilizing the GATORIZING forging process, was developed and demonstrated for application in small gas turbine engines. The development of this hybrid attachment concept consisted of fabricating, optimizing, and evaluating single ceramic blade/wrought alloy attachments by spin testing at ambient and elevated temperatures. The hybrid rotor concept was demonstrated by designing, fabricating, and spin testing several fully-bladed hybrid rotors, some containing ceramic simulated pseudoblades and others containing airfoil blades. The spin testing was conducted at speeds and temperatures comparable to small gas turbine engines. (Author)