Topic
Zirconium alloy
About: Zirconium alloy is a research topic. Over the lifetime, 6548 publications have been published within this topic receiving 78954 citations. The topic is also known as: zircaloy.
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TL;DR: In this article, an iron-chromium-aluminum (FeCrAl) cladding is proposed to replace zirconium alloy cladding in current commercial light water power reactors.
Abstract: After a tsunami caused plant black out at Fukushima, followed by hydrogen explosions, the US Department of Energy partnered with fuel vendors to study safer alternatives to the current UO2 -zirconium alloy system. This accident tolerant fuel alternative should better tolerate loss of cooling in the core for a considerably longer time while maintaining or improving the fuel performance during normal operation conditions. General electric, Oak ridge national laboratory, and their partners are proposing to replace zirconium alloy cladding in current commercial light water power reactors with an iron-chromium-aluminum (FeCrAl) cladding such as APMT or C26M. Extensive testing and evaluation is being conducted to determine the suitability of FeCrAl under normal operation conditions and under severe accident conditions. Results show that FeCrAl has excellent corrosion resistance under normal operation conditions and FeCrAl is several orders of magnitude more resistant than zirconium alloys to degradation by superheated steam under accident conditions, generating less heat of oxidation and lower amount of combustible hydrogen gas. Higher neutron absorption and tritium release effects can be minimized by design changes. The implementation of FeCrAl cladding is a near term solution to enhance the safety of the current fleet of commercial light water power reactors.
36 citations
TL;DR: In this article, the effect of tensile stress on the terminal solubility of hydride-forming metal components was investigated and the results showed that hydrogen migrates up tensile strain gradients because of the effects of stress on solubilities and solusability limit.
36 citations
TL;DR: A good agreement of the theory with experimental data is found and the effect of hydrogenation is shown to increase drastically the magnetization for Fe-rich concentrations, mainly as a consequence of the underlying volume expansion.
Abstract: The magnetization of relaxed structural models of amorphous Fe-Zr-H alloys is self-consistently computed within the framework of the itinerant-electron theory. A good agreement of the theory with experimental data is found and the effect of hydrogenation is shown to increase drastically the magnetization for Fe-rich concentrations, mainly as a consequence of the underlying volume expansion.
36 citations
TL;DR: In this article, the effect of alloyed Si on the autoclave corrosion performance and corrosion mechanisms of Zr-Sn-Nb-Fe-O alloys was investigated.
36 citations
TL;DR: In this article, the authors discuss current and potential failure mechanisms of these failure mechanisms, as well as the potential failure mechanism of the failure mechanisms. But, they do not consider the effect of hydrogen (H) pickup and redistribution on the ductility of the fuel rod.
36 citations