Ebling, FabienFabienEblingMichler, ThorstenThorstenMichler2025-06-112025-06-112025https://publica.fraunhofer.de/handle/publica/48853410.1002/mawe.2024001922-s2.0-105003809446The permeability, solubility, and diffusion of hydrogen in alloy 718 were examined through both, experimental results and data from existing literature. There is a notable difference between hydrogen solubilities calculated from concentration measurements and those derived from permeation measurements. Consequently, based on a synthesis of experimental and literature data, the following coefficients for hydrogen are proposed: K0=186 mol/(m3 * MPa0.5) and HS=8140 J/mol for solubility, P0=1.68 * 10-4 mol/(m3 * MPa0,5) and HP=57974 J/mol for permeability as well as D0=9.01 * 10-7 m2/s and HD=49834 J/mol for diffusivity. It is shown that these coefficients can largely be applied independently of the heat treatment of alloy 718.entruealloy 718diffusivityhydrogenpermeabilitysolubilityjournal article