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Thermal Shock Resistance of Fecral Alloys for Accident Tolerant Fuel Cladding Application

Picture for Thermal Shock Resistance of Fecral Alloys for Accident Tolerant Fuel Cladding Application
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After a loss of coolant accident a nuclear reactor needs to be flooded, quenching the fuel rods, which would suffer a thermal shock. Six commercial alloys of nuclear interest were tested for resistance to quenching measures after exposure to air at 1200°C for 2 hours.

Product Number: 51317--8900-SG
ISBN: 8900 2017 CP
Author: Raul Rebak
Publication Date: 2017
Industry: Energy Generation
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Since the Fukushima disaster of March 2011 nuclear fuel vendors are engaged in finding a fuel system that would be more resistant to accidents such as the loss of coolant.One option is to replace the current zirconium alloys cladding for FeCrAl alloys. Among other properties the proposed cladding should be resistant to thermal shock or quenchingwhich may occur when the reactor is flooded with fresh cool water. The current study compares the thermal shock resistance of several nuclear engineering alloys.

Keywords: Nuclear materials, FeCrAl alloys, accident tolerant, Fe22Cr5Al3Mo, quenching, mechanical properties.

Since the Fukushima disaster of March 2011 nuclear fuel vendors are engaged in finding a fuel system that would be more resistant to accidents such as the loss of coolant.One option is to replace the current zirconium alloys cladding for FeCrAl alloys. Among other properties the proposed cladding should be resistant to thermal shock or quenchingwhich may occur when the reactor is flooded with fresh cool water. The current study compares the thermal shock resistance of several nuclear engineering alloys.

Keywords: Nuclear materials, FeCrAl alloys, accident tolerant, Fe22Cr5Al3Mo, quenching, mechanical properties.

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