Interaction of hydrogen with dislocations in palladium—I. Activity and diffusivity and their phenomenological interpretation
R Kirchheim - Acta Metallurgica, 1981 - Elsevier
Activity and diffusivity of hydrogen in deformed and annealed palladium has been measured
by an electrochemical technique for different degrees of deformation (73, 50, 15, and 6%), at
295 and 322 K and over a wide range of hydrogen concentration from about 1 to 10 4 at.
ppm. Deviations from the ideal solution behavior are drastic at the low concentration side
where the solubility enhancement is as high as 1.2· 10 6 for 73% deformation and 1 at. ppm.
From a plot of the free excess enthalpy the ratio of the dislocation densities in samples of …
by an electrochemical technique for different degrees of deformation (73, 50, 15, and 6%), at
295 and 322 K and over a wide range of hydrogen concentration from about 1 to 10 4 at.
ppm. Deviations from the ideal solution behavior are drastic at the low concentration side
where the solubility enhancement is as high as 1.2· 10 6 for 73% deformation and 1 at. ppm.
From a plot of the free excess enthalpy the ratio of the dislocation densities in samples of …