ZIRCONIUM-BASED ALLOY FOR ELEMENTS USED IN NUCLEAR REACTOR CORES

The present invention relates to a zirconium-based alloy which is intended f or elements used in nuclear reactor cores and comprises the following elements: from 0.5 to 3.0 wt % of niobium; from 0.005 to 0.5 wt % of iron; from 0.03 t o 0.2 wt % of oxygen; from 0.001 to 0.04 wt % of carbon; from 0.00...

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Bibliographische Detailangaben
Hauptverfasser:	SHEBALDOV, PAVEL VASILIEVICH, SHEVNIN, JURY PAVLOVICH, KUZMENKO, NIKOLAI VASILIEVICH, MARKELOV, VLADIMIR ANDREEVICH, SHISHOV, VYACHESLAV NIKOLAEVICH, NIKULINA, ANTONINA VASILIEVNA, ROZHDESTVENSKY, VLADIMIR VLADIMIROVICH, PEREGUD, MIKHAIL MIKHAILOVICH, KOTREKHOV, VLADIMIR ANDREEVICH, LAVRENJUK, PETR IVANOVICH, AGEENKOVA, LIDIYA EFIMOVNA, SOLONIN, MIKHAIL IVANOVICH, BIBILASHVILI, YURY KONSTANTINOVICH, GANZA, NIKOLAI ALEXEEVICH, LOSITSKY, ANATOLY FRANTSEVICH
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	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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Beschreibung
Zusammenfassung:	The present invention relates to a zirconium-based alloy which is intended f or elements used in nuclear reactor cores and comprises the following elements: from 0.5 to 3.0 wt % of niobium; from 0.005 to 0.5 wt % of iron; from 0.03 t o 0.2 wt % of oxygen; from 0.001 to 0.04 wt % of carbon; from 0.002 to 0.1 wt % of silicon; from 0.003 to 0.02 wt % of nickel; the balance consisting of zirconium. The alloy structure is characterised in that it has a .alpha.- hardness temper and contains .beta. Nb-phase particles having a size not exceeding 0.1 .mu.m, the base having a niobium content of 60 to 95 %. This alloy may also includes particles of Zr-Fe-Nb intermetallic compounds, where in the ratio between the iron and the niobium ranges from 0.05 to 0.2. This all oy structure may also be characterised by a .alpha.-hardness temper reinforced by oxygen and by .beta. Nb-phase particles and may also include particles of Zr - Fe-Nb intermetallic compounds having a size not exceeding 0.3 .mu.m.