Abstract
The evolution of structural and phase state and hydrogen release from the ultrafine-grained hydrogenated zirconium Zr-1Nb alloy during vacuum annealing and electron beams exposure were studied. The use of electron beam irradiation for hydrogen degassing is shown to decrease the temperature of active hydrogen release by 100-200 K and/or reduce the time required for hydrogen degassing from the alloy to concentrations corresponding to technical standards.
Highlights
Works on finding materials that can accumulate and store hydrogen are actively developed
The task is to reduce the temperature of the active hydrogen release from solid-state hydrogen storages
One of the possible problem solutions can be using the effect of nonequilibrium hydrogen release for hydrogen degassing
Summary
Works on finding materials that can accumulate and store hydrogen are actively developed. During pulsed electron beam irradiation the substantial heating occurs only near the surface of the material and the temperature in the bulk of the material varies slightly [5]. The latter is important for the preservation of the UFG structure wherein recrystallization and grain growth are observed at temperatures of (0.3–0.4)Тmelt [6]. Taking into account the foregoing, the purpose of this work was to carry out comparative studies of the effect of vacuum annealing and pulsed and continuous electron beams exposure on the evolution of structural and phase state and hydrogen release from the UFG Zr-1Nb-Н alloy
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