SYMPOSIA PAPER Published: 01 January 1973
STP38858S

Thermal Fatigue Characterization of Cast Cobalt and Nickel-Base Superalloys

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Tapered disk thermal fatigue tests have been conducted on one cobalt- and one nickel-base superalloy for the purpose of characterizing crack growth behavior. It is shown that linear elastic fracture mechanics can be used to represent the crack growth rate data, and that the propagation mode prefers favorably-oriented carbides.

Author Information

Mowbray, DF
General Electric Company, Schenectady, N. Y.
Woodford, DA
Materials and Processes Laboratory, General Electric Company, Schenectady, N. Y.
Brandt, DE
General Electric Company, Schenectady, N. Y.
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Details
Developed by Committee: E08
Pages: 416–426
DOI: 10.1520/STP38858S
ISBN-EB: 978-0-8031-5576-3
ISBN-13: 978-0-8031-5528-2