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ZIRCONIUM ALLOY NUCLEAR FUEL CLADDING TUBE HAVING EXCELLENT CORROSION RESISTANCE AND METHOD FOR MANUFACTURING THE SAME BY USING PROTECTIVE ZIRCONIUM OXIDE COATING FILM FORMED ON THE OUTER SURFACE OF THE CLADDING TUBE
ZIRCONIUM ALLOY NUCLEAR FUEL CLADDING TUBE HAVING EXCELLENT CORROSION RESISTANCE AND METHOD FOR MANUFACTURING THE SAME BY USING PROTECTIVE ZIRCONIUM OXIDE COATING FILM FORMED ON THE OUTER SURFACE OF THE CLADDING TUBE
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机译:具有优异耐腐蚀性的锆合金核燃料包覆管及其制造方法
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摘要
PURPOSE: A zirconium alloy nuclear fuel cladding tube and a method for manufacturing the same are provided to achieve improved corrosion resistance by forming a protective zirconium oxide coating film on the outer surface of the cladding tube. CONSTITUTION: A zirconium alloy nuclear fuel cladding tube is formed of an extended hollow metal tube for accommodating a nuclear fuel. The metal tube is made of a zirconium alloy, and has an outer surface on which a zirconium oxide coating film having a thickness of 0.5 to 3.7§ is formed. The zirconium alloy consists of Sn 1.20 to 1.70 weight%, Fe 0.18 to 0.24 weight%, Cr 0.07 to 1.13 weight%, O 900 to 1500ppm, and a remainder Zr.
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