FAST REACTOR FUEL ELEMENT

FIELD: nuclear power engineering; fuel elements for liquid-metal cooled fast reactors. ^ SUBSTANCE: outer diameter of fuel element cladding is chosen between 5.9 and 7.5 mm and its thickness is between 0.25 and 0.55 mm; cladding is made of steel having following composition mass percent: carbon, 0.0...

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Main Authors BUDANOV JU.P, TSELISHCHEV A.V, MEDVEDEV A.V, KOROSTIN O.S, POTOSKAEV G.G, BYCHKOV S.A, KRJUKOV O.V, OSHKANOV N.N, BIBILASHVILI JU.K, BEK E.G
Format Patent
LanguageEnglish
Russian
Published 27.11.2004
Edition7
Subjects
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:FIELD: nuclear power engineering; fuel elements for liquid-metal cooled fast reactors. ^ SUBSTANCE: outer diameter of fuel element cladding is chosen between 5.9 and 7.5 mm and its thickness is between 0.25 and 0.55 mm; cladding is made of steel having following composition mass percent: carbon, 0.05 - 0.08; silicon, 0.3 - 0.6; manganese, 1.0 - 2.0; sulfur, maximum 0.012; phosphor, maximum 0.02; chromium, 15.5 - 17.0; nickel, 14.0 - 15.5; molybdenum, 1.9 - 2.5; titanium, 0.2 - 0.5; vanadium, 0.1 - 0.3; boron, 0.002 - 0.005; nitrogen, maximum 0.02; cobalt, maximum 0.02; aluminum, maximum 0.01; magnesium, 0.0001 - 0.005; calcium, 0.0005 - 0.005; iron, the rest; titanium-to-carbon content ratio is minimum 4. Enhanced swelling resistance of fuel element cladding during irradiation reduces probability of its shape change. ^ EFFECT: enhanced mechanical strength and corrosion resistance of cladding at high temperatures; facilitated manufacture. ^ 2 cl, 1 dwg, 2 tbl
Bibliography:Application Number: RU20030109240