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RADIATION EFFECTS ON REACTOR METALS

Journal Article · · Nucleonics (U.S.) Ceased publication
OSTI ID:4162562
Radiation induced changes in metal core structures and vessels are affected by material purity, grain size, temperature, stresses, and stress cycles. Neutron irradiation of two high-alloy ferritic steels produces increased yield stress and tensile strength but causes a decrease in elongation. Fine grain size increases the resistance of the steel to radistion effects. The low-carbon steels have less uniform ductility after exposure. Stainless steels offer the advantages of higher initial ductility and lack of entirely brittle failure. Hardness and tensile strength increases up to a certain maximum exposure. Evaluation of welded structures was made under high neutron doses at various temperatures. Radiation effects on cladding materials and light metals such as zirconium, aluminum, beryllium, raolybdenum, and niobium were studied. Control materials were also investigated and the results reported. (M.C.G.)
Research Organization:
Atomic Power Development Associates, Inc., Detroit
NSA Number:
NSA-14-023378
OSTI ID:
4162562
Journal Information:
Nucleonics (U.S.) Ceased publication, Journal Name: Nucleonics (U.S.) Ceased publication Vol. Vol: 18, No. 9; ISSN NUCLA
Country of Publication:
Country unknown/Code not available
Language:
English