Back to results
US 7,627,075 B2Granted
Zirconium-based alloy and method for making a component for nuclear fuel assembly with same
AssigneeFramatome ANP GmbH
InventorsDaniel Charquet, Jean-Paul Mardon, Jean Senevat
Life of this patent
Estimating the term…
Abstract
The invention proposes a zirconium-based alloy also containing, by weight, apart from unavoidable impurities, from 0.02 to 1% of iron, from 0.8% to 2.3% of niobium, less than 2000 ppm of tin, less than 2000 ppm of oxygen, less than 80 ppm of carbon, from 5 to 35 ppm of sulphur and less than 0.25% in total of chromium and/or vanadium, the ratio R of the niobium content less 0.5% to the iron content, optionally supplemented by the chromium and/or vanadium content, being lower than 3.
Claims4
A zirconium-based alloy consisting essentially of:
- zirconium;
- and
- in addition to unavoidable impurities, by weight, from 0.02 to 1% iron, from 0.8% to 2.3% niobium, less than 2000 ppm tin, less than 2000 ppm oxygen, less than 80 ppm carbon, from 5 to 35 ppm sulphur and less than 0.25% chromium, wherein a ratio maintains a formula of (Nb−0.5%)/(Fe+Cr)<3.
Dependencies are inferred from the claim text.