Analysis of the Effect of the Stress-Strain State of Irradiated Zirconium-Alloy Fuel-Element Cladding on Hydride Orientation


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The effect of the stress distribution on the hydride distribution in zirconium cladding of fuel elements with dispersion fuel is analyzed. It is shown that reorientation of zirconium hydrides can occur in fuel-element cladding under the action of tensile stresses, which can result in the appearance of radially oriented hydrides and plasticity reduction in the cladding upon cool-down of the fuel elements. The threshold tensile stresses are determined in the cladding in the unirradiated and irradiated states, in which hydride reorientation from tangential to radial occurs.

Sobre autores

G. Kulakov

Bochvar High-Technology Research Institute for Inorganic Materials (VNIINM)

Email: j-atomicenergy@yandex.ru
Rússia, Moscow

A. Vatulin

Bochvar High-Technology Research Institute for Inorganic Materials (VNIINM)

Email: j-atomicenergy@yandex.ru
Rússia, Moscow

Yu. Konovalov

Bochvar High-Technology Research Institute for Inorganic Materials (VNIINM)

Email: j-atomicenergy@yandex.ru
Rússia, Moscow

A. Kosaurov

Bochvar High-Technology Research Institute for Inorganic Materials (VNIINM)

Email: j-atomicenergy@yandex.ru
Rússia, Moscow

M. Peregud

Bochvar High-Technology Research Institute for Inorganic Materials (VNIINM)

Email: j-atomicenergy@yandex.ru
Rússia, Moscow

E. Korotchenko

Bochvar High-Technology Research Institute for Inorganic Materials (VNIINM)

Email: j-atomicenergy@yandex.ru
Rússia, Moscow

V. Shishin

State Science Center – Research Institute for Atomic Reactors (GNTs NIIAR)

Email: j-atomicenergy@yandex.ru
Rússia, Dimitrovgrad

A. Shel’dyakov

State Science Center – Research Institute for Atomic Reactors (GNTs NIIAR)

Email: j-atomicenergy@yandex.ru
Rússia, Dimitrovgrad

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