INVESTIGATION OF NEUTRON RADIATION EFFECTS ON THE MECHANICAL BEHAVIOR OF RECRYSTALLIZED ZIRCONIUM ALLOYS - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Access content directly
Journal Articles Journal of Nuclear Materials Year : 2006

INVESTIGATION OF NEUTRON RADIATION EFFECTS ON THE MECHANICAL BEHAVIOR OF RECRYSTALLIZED ZIRCONIUM ALLOYS

Abstract

Neutron radiation induces important changes in the mechanical behavior of recrystallized zirconium alloys used as fuel cladding tube. The neutron radiation effects on the mechanical behavior for internal pressure test performed at 350DC have been investigated using a specific analysis in terms of isotropic hardening, kinematic hardening and viscous stress. The impact of irradiation has been interpreted in terms of microscopic deformation mechanisms observed by Transmission Electron Microscopy (TEM). It is proposed that because of the localization of the plastic deformation inside channels and because of the only activation of basal channeling, the kinematic hardening must be strong in irradiated zirconium alloys. A simple unified phenomenological modeling is also used in order to have a coherent description of the radiation effects on the mechanical behavior.

Dates and versions

cea-02360115 , version 1 (12-11-2019)

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F. Onimus, Jl. Bechade, C. Duguay, D. Gilbon, P. Pilvin. INVESTIGATION OF NEUTRON RADIATION EFFECTS ON THE MECHANICAL BEHAVIOR OF RECRYSTALLIZED ZIRCONIUM ALLOYS. Journal of Nuclear Materials, 2006, 358, ⟨10.1016/j.jnucmat.2006.07.005⟩. ⟨cea-02360115⟩

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