Hydrogen in V-Fe thin films and Fe/V-Fe multi-layered thin films (English shop)

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This dissertation investigates hydrogen absorption, mechanical properties, and local hydrogen distribution in vanadium-iron thin films and iron-vanadium multilayer systems. The research focuses on hydrogen-induced lattice deformation, mechanical stress, hydride formation, and interactions between hydrogen and crystal defects. Electrochemical hydrogen loading, in-situ X-ray diffraction, acoustic emission measurements, and atom probe tomography are employed to characterize structural changes and hydrogen distributions. Particular attention is given to the influence of film thickness, interfaces, vacancies, and dislocations on hydrogen solubility and stress evolution. Deuterium measurements reveal hydrogen-depleted interfacial regions and localized hydrogen enrichment. The findings provide new insights into hydrogen-metal interactions and the behavior of nanoscale metallic thin-film systems.