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A Study on the Laser Beam Weldability Using Zircaloy-4 Cladding Tube  

박진석
김동균
김상태
양명승
김수성
이정원
Publication Information
Journal of Welding and Joining / v.20, no.6, 2002 , pp. 72-72 More about this Journal
Abstract
Corrosion and tensile properties of zircaloy-4 cladding tube having a laser welding part in elevated temperature are studied to present the criterion of quality evaluation in nuclear reactor and find the scientific basis of SCC, with laser welding method using by coupling up cladding tube to end cap. In the result of tensile test(400℃), the fracture is not happened in the welding part but base metal and the result of corrosion test(400℃ 1500psi steam), corrosion rate of the molten zone and PMZ is a little higher than the other zone.
Keywords
Zircaloy-4, Leser Weling, PMZ(Partial Melting Zone). F.Z(Fusion Zone). B.M(Base Metal), Weight Gain, Oxide Film, Cladding Tube;
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