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U.S. Department of Energy
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Fatigue crack propagation of low-alloy steel in a vacuum environment: Final report

Technical Report ·
OSTI ID:6119103
The fatigue-crack propagation (FCP) behavior of ASTM A533-B-1 steel was characterized in vacuo at 288/sup 0/C. Tests were conducted at two stress ratios: R = 0.05 and R = 0.7. Results of these tests were compared with results from precious studies for the same type of steel tested in an air environment, and FCP rates in vacuo were generally lower than those in air. Stress ratio effects in vacuo were not as great as those in air, and both stress ratio effects and environmental effects are discussed from the standpoint of crack closure concepts.
Research Organization:
Westinghouse Hanford Co., Richland, WA (USA); Electric Power Research Inst., Palo Alto, CA (USA)
DOE Contract Number:
AC06-76FF02170
OSTI ID:
6119103
Report Number(s):
EPRI-NP-5345; ON: DE87013770
Country of Publication:
United States
Language:
English