Deformation Characteristics and Time-Dependent Notch Sensitivity of Udimet 700 at Intermediate Temperatures

[+] Author and Article Information
D. J. Wilson

The International Nickel Co., Inc., Paul D. Merica Research Lab., Sterling Forest, Suffern, N. Y.; University of Michigan, Ann Arbor, Mich.

J. Eng. Mater. Technol 97(3), 223-233 (Jul 01, 1975) (11 pages) doi:10.1115/1.3443289 History: Received September 03, 1974; Revised December 02, 1974; Online August 17, 2010


Time-dependent notch sensitivity of Udimet 700 sheet, bar, and investment castings was observed between 1000 deg and 1400 deg F (538–760 deg C) but not at 1600 deg F (871 deg C). As was the case for Modified Waspaloy, Waspaloy, René 41, INCONEL 718 and TD-NiCr, it occurred when notched specimens were loaded below the yield strength and when creep deformation was localized. For each γ′ strengthened alloy and notched specimen geometry, a stress-average particle size zone can be defined to characterize the notch sensitive behavior.

Copyright © 1975 by ASME
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