Zirconium alloy composition for nuclear fuel cladding tube forming protective oxide film, zirconium alloy nuclear fuel cladding tube manufactured using the composition, and method of manufacturing the zirconium alloy nuclear fuel cladding tube

a technology of zirconium alloy and nuclear fuel, which is applied in the direction of nuclear engineering, nuclear elements, greenhouse gas reduction, etc., can solve the problems of serious corrosion phenomenon of nuclear fuel, and achieve excellent corrosion resistance
US20100108204A1Inactive Publication Date: 2010-05-06KOREA ATOMIC ENERGY RES INST +1
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
KOREA ATOMIC ENERGY RES INST
Publication Date
2010-05-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

Disclosed herein is a zirconium alloy composition for nuclear fuel cladding tubes, comprising: 1.6˜2.0 wt % of Nb; 0.05˜0.14 wt % of Sn; 0.02˜0.2 wt % of one or more elements selected from the group consisting of Fe, Cr and Cu; 0.09˜0.15 wt % of O; 0.008˜0.012 wt % of Si; and a balance of Zr, a nuclear fuel cladding tube comprising the zirconium alloy composition, and a method of manufacturing the nuclear fuel cladding tube. Since the nuclear fuel cladding tube made of the zirconium alloy composition can maintain excellent corrosion resistance by forming a protective oxide film thereon under the conditions of high-temperature and high-pressure cooling water and water vapor, it can be usefully used as a nuclear fuel cladding tube for light water reactors or heavy water reactors, thus improving the economical efficiency and safety of the use of nuclear fuel.
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Description

CROSS-REFERENCES TO RELATED APPLICATION

[0001] This patent application claims the benefit of priority under 35 U.S.C. §119 of Korean Patent Application No. 10-2008-0043446 filed on May 9, 2008, the contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention relates to a zirconium alloy composition for nuclear fuel cladding tubes, which can maintain excellent corrosion resistance for a long period of time by forming a protective oxide film under the operating environment of a light water reactor or a heavy water reactor, a zirconium alloy nuclear fuel cladding tube manufactured using the zirconium alloy composition, and a method of manufacturing the zirconium alloy nuclear fuel cladding tube.

[0004] 2. Description of the Related Art

[0005] A nuclear fuel cladding tube used for a nuclear fuel assembly of a light water reactor or a heavy water reactor is predominantly manufactured using a zirconium alloy. To dat...

Claims

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