The Influence of Long-Term Annealing Simulating Parameters of Dry Storage of VVER-1000 Fuel Rods on Mechanical Properties of Claddings from E110 Alloy in the Longitudinal Direction

This article presents the experimental results of mechanical properties of fuel rod claddings from E110 zirconium alloy in the longitudinal direction that operated in fuel assemblies of VVER-1000 nuclear reactors to the fuel burnup of ~20 and ~70 MW d/kg U before and after post-radiation annealing a...

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Veröffentlicht in:	Inorganic materials : applied research 2022-06, Vol.13 (3), p.842-847
Hauptverfasser:	Kobylyansky, G. P., Mazaev, A. O., Zvir, E. A., Eremin, S. G., Chertopyatov, E. V., Obukhov, A. V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Annealing Chemistry Chemistry and Materials Science Claddings Industrial Chemistry/Chemical Engineering Inorganic Chemistry Materials Science Mechanical properties New Methods of Treatment and Production of Materials with Required Properties Nuclear fuel elements Nuclear fuels Nuclear reactors Plastic properties Radiation Radiation damage Zirconium alloys Zirconium base alloys
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Zusammenfassung:	This article presents the experimental results of mechanical properties of fuel rod claddings from E110 zirconium alloy in the longitudinal direction that operated in fuel assemblies of VVER-1000 nuclear reactors to the fuel burnup of ~20 and ~70 MW d/kg U before and after post-radiation annealing at 380°C for 468 days. The changes in strength and plastic properties of the cladding in longitudinal direction were analyzed in comparison with its properties before and after irradiation and with their changes in the transverse direction. The changes in mechanical properties of the cladding are explained as a function of radiation damage of its structure.
ISSN:	2075-1133 2075-115X
DOI:	10.1134/S2075113322030170