The fatigue-crack propagation behavior of ASTM A533-B steel tested in vacuo at LWR operating temperatures

Technical Report · Thu Jan 01 00:00:00 EST 1987

OSTI ID:7181048

James, L A

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 previous 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: Hanford Engineering Development Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76FF02170
• OSTI ID: 7181048
• Report Number(s): HEDL-7636; ON: DE87005491
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

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360103 - Metals & Alloys- Mechanical Properties