Effect of Heat Treatment on the Creep Properties of Zr-1Nb-0.12O Nuclear Cladding Tubes

In Won Kim; Sun Ig Hong

doi:10.4028/www.scientific.net/AMR.1102.3

Paper Titles

Preface, Committee and Sponsors

Effect of Heat Treatment on the Creep Properties of Zr-1Nb-0.12O Nuclear Cladding Tubes
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Mechanical Performance and Ductility of Cu/Al/Cu Clad Metals
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Study of Co-Mn/TiO₂ SCR Catalyst at Low Temperature
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Hot Deformation and Cracking during Compression of 21-4N Steel
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The 6N01 Aluminum Components by Orthogonal Design Optimization
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Emission Factors for Dioxin for Coal Burning, Secondary Smelting and Alloying of Aluminum, and Cement Kiln Processes
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Effect of Shot Peening Coverage on Fatigue Strengths of Steels and Aluminum Alloy
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Patch Designing for Damaged Metallic Structure Repaired with Adhesively Bonded Composite Patch
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1102Effect of Heat Treatment on the Creep Properties...

Effect of Heat Treatment on the Creep Properties of Zr-1Nb-0.12O Nuclear Cladding Tubes

Abstract:

Creep properties of one-step and two-step annealed Zr-1Nb-0.12O cladding tubes were studied. Creep tests were carried out at 450~500 °C with the applied stress between 80MPa and 120MPa The creep rates of the two-step annealed Zr-1Nb-0.12O alloy were found to be slower than those of the one-step annealed Zr-1Nb-0.12O alloy. The creep rate decreased with increase of grain size with annealing for Zr-1Nb-0.12O at intermediate temperatures, suggesting the creep resistance can be enhanced by the grain size control. The creep life of two-step annealed Zr-1Nb-0.12O increased over the one-step annealed Zr-1Nb-0.12O by the factor of 18~20 despite the greater initial instantaneous strain.