Sergienko

The article presents data on the development of the laboratory complex for determining a deformation capacity (mechanical properties) of the fuel rod claddings under pellet-cladding interaction (PCI) and controlled conditions specified by the following parameters: temperature, strain rate, hydrogen concentration, the concentration of corrosive medium (iodine). The article discusses the testing results of the mechanical loading device layout and the mechanical loading device (MLD) as such when stress is applied to Ø9.1x7.73 mm zirconium cladding from alloy E110 o.ch. at the temperatures of 380°C and 350°C via the plunger force acting on the simulator of fuel pellet made of aluminum oxide.