Hydrogen-induced phase transformations in foils of palladium–indium–ruthenium alloy

Abstract

Precision X-ray diffractometry of the structure–phase state of the Pd–5.3 at % In–0.5 at % Ru alloy foil was performed after the foil had been hydrogenated in different ways. Nonmonotonic changes in the phase composition of the alloy during the relaxation process were observed. Processes of separation of coexisting phases were found to depend on the direction of hydrogen entry into the foil and on the diffraction orientation of the coherent scattering domains (CSDs).