NRL-EPRI research program (RP886-2): evaluation and prediction of neutron embrittlement in reactor pressure-vessel materials. Part I. Dynamic C/sub v/, PCC/sub v/ investigations. Annual progress report for CY 1979

Technical Report · Wed Dec 31 04:00:00 EST 1980

OSTI ID:5685170

Hawthorne, J R ^[1]

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1. ed.

This report documents program highlights and research results for CY 1979 along with plans for the completion of program investigations. Postirradiation test data are presented for plate, forging and weld deposit materials irradiated in six reactor experiments to fluences ranging from approx. 0.1 to approx. 3 x 10/sup 19/ n/cm/sup 2/ > 1 MeV at 288/sup 0/C. Comparisons are made between results for standard Charpy V-notch and fatigue precracked Charpy-V tests of preirradiation and postirradiation material conditions. A companion document (Annual Progress Report for CY 1979: Part II, to be published) will present results for the 25.4 mm compact toughness (J-R curve) tests of the same materials and material conditions. A preliminary correlation of the Charpy-V and J-integral fracture toughness property changes with irradiation is observed.

• Research Organization: Naval Research Lab., Washington, DC (USA)
• OSTI ID: 5685170
• Report Number(s): NRL-MR-4431; ON: DE82901972
• Country of Publication: United States
• Language: English

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ALLOYS
CARBON STEELS
DUCTILITY
EMBRITTLEMENT
IRON ALLOYS
IRON BASE ALLOYS
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