Bachman & LaPointe, P.C.
Method for manufacturing zirconium-based alloys containing niobium for use in nuclear fuel rod cladding
The present invention relates to a method for manufacturing zirconium-based alloys containing niobium with superior corrosion resistance for use in nuclear fuel rod claddings. The method of this invention comprises melting of the alloy, β-forging, β-quenching, hot-working, vacuum annealing, cold-working, intermediate annealing and final annealing, whereby the niobium concentration in the α-Zr matrix decreases from the supersaturation state to the equilibrium state to improve the corrosion resistance of the alloy. Such zirconium-based alloys containing niobium are usefully applied to nuclear fuel rod cladding of the cores in light water reactors and heavy water reactors.
Korea Atomic Energy Research Institute Korea Hydro & Nuclear Power Co., Ltd.
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C22C Y02E G21C C22F
inventional additional inventional inventional
Youn Ho Jeong Yong Yong Hwan Myung Ho Byoung Kwon Sang Yoon Cheol Jong Hyuk
Jung Park Jeong Lee Choi Park Nam Baek