Development of a Ceramic Blade-Superalloy Disk Attachment For Gas Turbine Rotors Pratt and Whitney Aircraft

Format:

Conference/Event

Author/Creator:

Walker, Bryant H., author.

Conference Name:

1976 Automotive Engineering Congress and Exposition (1976-02-23 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1976

Summary:

With improving ceramic materials and fabrication techniques, a major effort is underway to design and test ceramic hot flow path components for gas turbine engines. The most critical and furthest from a satisfactory engineering solution is the turbine rotor. This paper summarizes the development of a new technique for attaching hot pressed silicon nitride ceramic airfoil shapes to a wrought AF2-1DA superalloy disk using the GATORIZING isothermal forging process. Attachment design, fabrication and testing techniques are discussed leading to the establishment of a 99.5 percent statistical lower bound P/A blade stress of 20.5 ksi (141 MN/m2). Subsequent elevated temperature attachment development techniques for establishing design criteria for operation in the gas turbine environment are also defined

Notes:

Vendor supplied data

Publisher Number:

760240

Access Restriction:

Restricted for use by site license