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Diffusion of Hydrogen and Helium in Inconel 625Diffusion 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).
Document ID
20070001540
Document Type
Reprint (Version printed in journal)
Authors
Palosz, W. (BAE Systems Huntsville, AL, United States)
Gillies, D. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Lehoczky, S. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 24, 2013
Publication Date
January 1, 2006
Subject Category
Physics (General)
Distribution Limits
Public
Copyright
Other