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Abstract The structural state of diffusive membrane filters made from a Pd 94 Y 6 alloy, which have undergone a prolonged relaxation after hydrogenation, is studied. The phase composition and… Click to show full abstract
Abstract The structural state of diffusive membrane filters made from a Pd 94 Y 6 alloy, which have undergone a prolonged relaxation after hydrogenation, is studied. The phase composition and structure dispersity are determined. One of the membranes was subjected to secondary hydrogenation, and the effect of occluded hydrogen on the strain processes in the crystal lattice of the inhomogeneous material was demonstrated. High-resolution scanning electron microscopy is used to study the Ostwald ripening of the surface structure of the diffusion membrane filters after secondary hydrogenation. The fact of grain coalescence of an island structure, which can substantially affect the strength characteristics of the membranes, is found.
Journal Title: Russian Metallurgy (Metally)
Year Published: 2020
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