Zirconium alloys for a nuclear fuel cladding having a superior corrosion resistance by reducing an amount of alloying elements and methods of preparing a zirconium alloy nuclear fuel cladding using thereof

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United States of America Patent

PATENT NO 9136023
APP PUB NO 20130220494A1
SERIAL NO

13747614

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Abstract

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Disclosed are a zirconium alloy for a nuclear fuel cladding having a good corrosion resistance by reducing an amount of alloying elements and a method of preparing a zirconium alloy nuclear fuel cladding using thereof. The zirconium alloy includes 0.2 to 0.5 wt % of niobium (Nb); 0.2 to 0.6 wt % of iron (Fe); 0.3 to 0.5 wt % of chromium (Cr); 0.1 to 0.15 wt % of oxygen (O); 0.008 to 0.012 wt % of silicon (Si) and a remaining amount of zirconium (Zr). The total amount of the niobium, the iron and the chromium is 1.1 to 1.2 wt %. A good oxidation resistance of the nuclear fuel cladding may be confirmed under accident conditions as well as normal operating conditions of a reactor, thereby improving economic feasibility and safety.

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Patent Owner(s)

  • KOREA ATOMIC ENERGY RESEARCH INSTITUTE;KOREA HYDRO & NUCLEAR POWER CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Choi, Byoung-Kwon Daejeon, KR 9 29
Jung, Yang-Il Daejeon, KR 8 25
Kim, Hyun Gil Daejeon, KR 23 53
Koo, Yang-Hyun Daejeon, KR 12 45
Park, Dong Jun Daejeon, KR 24 87
Park, Jeong-Yong Daejeon, KR 18 152
Park, Sang Yoon Daejeon, KR 59 138

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