TRENDS IN CHARPY-V SHELF ENERGY DEGRADATION AND YIELD STRENGTH INCREASE OF NEUTRON-EMBRITTLED PRESSURE VESSEL STEELS.

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Abstract:

The effects of neutron irradiation on Charpy-V shelf energy and yield strength was examined for three pressure vessel steel compositions A302-B, A533, and A543. The effects of radiation exposure at low temperature 300F 149C and at elevated temperature 550F 288 C to 740F 393C on the overall notch ductility are documented and compared. Summary plots showing the simultaneous degradation in shelf energy and the increase of yield strength levels broadly illustrate the progressive change from ductile fracture performance to relatively brittle characteristics. Author

Author(s):
Hawthorne, J. Russell
Author Organization(s):
NAVAL RESEARCH LAB WASHINGTON D C
Descriptive Note:
Interim rept.,
Pagination:
0029

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NRL-7011
Project Number(s):
NRL-M01-14, RR-007-11-46-5409
 Subject Terms
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
(*NUCLEAR REACTORS, MATERIALS), (*STEEL, *DAMAGE), PRESSURE VESSELS, EMBRITTLEMENT, IMPACT TESTS, NEUTRON REACTIONS, TRANSITION TEMPERATURE, DUCTILITY, TOUGHNESS, TENSILE PROPERTIES, WELDS, (U)WELDS
Field(s)/Group(s):
Laminates and Composite Materials, Radioactivity, Radioactive Wastes and Fission Products, Fission Reactor Materials
Keyword(s):
STEEL A 533, STEEL A 543, STEEL A302 B
Report Date:
1969 Dec 22