ИСТИНА

Fundamental approaches to composition design of multicomponent single-phase alloys have been discussed. Based on these thermodynamic principles, we prepared a series of new HEA, for which the structure and interaction with hydrogen were characterized. Special attention was paid to the preparation techniques. Along with conventional arc melting, mechanochemical synthesis in a high-energy ball mill, electron beam melting and pendant drop melt extraction were used. Effect of the synthesis methods on the crystal structure of as-prepared alloys and their hydrides was examined by means of scanning and transmission electron microscopy, X-ray and neutron diffraction.