In situ X-Ray diffraction study of hydrogen sorption in V-rich Ti–V–Cr bcc solid solutions

• In situ synchrotron XRD as a probe of formation/decomposition of hydrides.
• Thermal stability of (Ti–Cr) alloyed vanadium-rich hydrides.
• Discussion of the hydrides practicability.

Alloying of vanadium with a combination of titanium and chromium has been investigated in this study. Hydrogenation/desorption of several alloys under similar experimental conditions has been performed and sequentially followed by means of in situ X-Ray powder diffraction. This latter technique has been used as a probe of formation or decomposition of hydrides. Geometrical effects are discussed and account for the observed similarities of the sorption properties.