Diffusion of Hydrogen and Helium in Inconel 625
- Resource Type
- Report
- Authors
- Palosz, W; Gillies, D; Lehoczky, S
- Source
- Subject
- Physics (General)
- Language
- English
Diffusion parameters for hydrogen and helium in Inconel 625 were investigated. The dependence of permeability of hydrogen in the temperature range 310 - 750 C is given. Solubility of hydrogen at 1 atm in the range 640 - 860 C was determined and diffusivity of the gas was calculated. Experiments with diffusion and solubility at 0.09 atm suggest a molecular mechanism of solution of hydrogen in the material. Diffusivity of helium was estimated at less than 10(exp -18) sq cm/s (at 1040 C).