Fatigue behavior of a thermal barrier coated superalloy at 800 degree C

Ray, AK and Dwarakadasa, ES and Das, DK and Ranganath, VR (2007) Fatigue behavior of a thermal barrier coated superalloy at 800 degree C. Materials Science and Engineering: A, 448 (1-2). pp. 294-298.

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Abstract

Fatigue testing of thermal barrier coated (TBC), bond coated only and bare Superni C263 superalloy was conducted at 800 x25E6;C in air. Results reveal that the endurance limits for the TBC and bond coated substrate was substantially higher than that of the base alloy, while the opposite was13; found for high stress, low cyclic life times. It appears that the increase in endurance limit for the TBC and bond coated superalloy is due to load13; shifting to the bond coat, and the premature failure for these two materials is possibly due to high stress crack imitation/growth in the TBC/bond13; coat layers.

Item Type: Article
Additional Information: Copyright for this article belongs to Elsevier Science Ltd.,
Uncontrolled Keywords: Thermal barrier coating (TBC);Fatigue;Superalloy;Bond coat; Substrate;Endurance;Stress;Crack growth
Subjects: AERONAUTICS > Aeronautics (General)
CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Depositing User: Users 11 not found.
Date Deposited: 18 Feb 2009
Last Modified: 27 Aug 2012 10:03
URI: http://nal-ir.nal.res.in/id/eprint/4974

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