In-vacuum cyclic fatigue behavior of Vanstar-7 at elevated temperatures
Unirradiated Vanstar-7 alloy was tested in fatigue at room temperature, 550/sup 0/, and 650/sup 0/C, respectively, in high vacuum below 10/sup -5/ Pa. The test data are analyzed and compared with those of V-15Cr-5Ti and 20% cold-worked type 316 stainless steel tested under the same condition. Results show that the fatigue resistance of Vanstar-7 is in general somewhat lower than that of V-15Cr-5Ti. The low fatigue performance for Vanstar-7 at the elevated temperatures in the high cycle range may be attributable to thermal creep damages because Vanstar-7 is less creep resistant than V-15Cr-5Ti. However, Vanstar-7 exhibits superior fatigue resistance compared with the stainless steel in the low strain range below 0.5% strain.
- Research Organization:
- Oak Ridge National Lab., Metals and Ceramics Div., Oak Ridge, TN 37831
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 7005503
- Report Number(s):
- CONF-860652-
- Journal Information:
- Fusion Technol.; (United States), Journal Name: Fusion Technol.; (United States) Vol. 10:3; ISSN FUSTE
- Country of Publication:
- United States
- Language:
- English
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Subtask 12D6: Fatigue behavior of unirradiated V-5Cr-5Ti
In-vacuum cyclic fatigue behavior of Vanstar-7 at elevated temperatures
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ALLOYS
AMBIENT TEMPERATURE
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COLD WORKING
CORROSION RESISTANT ALLOYS
CREEP
DATA ANALYSIS
FABRICATION
FATIGUE
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH TEMPERATURE
HIGH VACUUM
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MATERIALS TESTING
MATERIALS WORKING
MECHANICAL PROPERTIES
MOLYBDENUM ALLOYS
NICKEL ALLOYS
PERFORMANCE
STAINLESS STEEL-316
STAINLESS STEELS
STEELS
STRAINS
TEMPERATURE EFFECTS
TESTING
THERMONUCLEAR REACTOR MATERIALS
TITANIUM ALLOYS
VANADIUM ALLOYS
VANADIUM BASE ALLOYS
VANSTAR 7
ZIRCONIUM ALLOYS