Investigation of Hydride Reorentation in Unirradiated Cladding Tubes from E110 Alloy Under Long-Term Dry Storage Conditions
https://doi.org/10.56304/S2079562922010225
Abstract
Hydrides’ reorientation is one of the most critical mechanisms observed during dry storage of spent fuel, which can cause depressurization of the fuel element cladding. In this work hydrides reorientation of unirradiated gas pressurized samples made from VVER-1000 cladding material (Zr‒1% Nb) has been investigated under conditions simulating long-term dry storage. Thermomechanical tests were conducted with samples containing 100 and 200 ppm of H according to different annealing scenarios with cladding hoop stresses up to 100 MPa. It was revealed that hydrides reorientation and induced plasticity decrease of the cladding material were not significant. Hoop stress level appeared to be the most significant factor that affects hydrides reorientation in the cladding.
About the Authors
R. A. Kurskiy
National Research Centre “Kurchatov Institute”, Moscow, 123182 Russia
Russian Federation
Russian Federation
A. V. Rozhkov
National Research Centre “Kurchatov Institute”, Moscow, 123182 Russia
O. O. Zabusov
National Research Centre “Kurchatov Institute”, Moscow, 123182 Russia
A. B. Gaiduchenko
National Research Centre “Kurchatov Institute”, Moscow, 123182 Russia
A. S. Bragin
National Research Centre “Kurchatov Institute”, Moscow, 123182 Russia
D. A. Maltsev
National Research Centre “Kurchatov Institute”, Moscow, 123182 Russia
A. A. Shishkin
National Research Centre “Kurchatov Institute”, Moscow, 123182 Russia
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Review
For citations:
Kurskiy R.A., Rozhkov A.V., Zabusov O.O., Gaiduchenko A.B., Bragin A.S., Maltsev D.A., Shishkin A.A. Investigation of Hydride Reorentation in Unirradiated Cladding Tubes from E110 Alloy Under Long-Term Dry Storage Conditions. Nuclear Physics and Engineering. 2022;13(1):5-12. (In Russ.) https://doi.org/10.56304/S2079562922010225
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