Hydrogen-sorption properties of (Ti, Zr)Mn2–x intermetallic alloy
2013
The microstructure and phase composition of 15.4 at.% Ti–30.2 at.% Zr–54.4 at.% Mn as-cast alloy as well as the phase composition of hydrogenation and desorption products are studied with optical microscopy and X-ray diffraction. It is found that the alloy under study is able to rapidly absorb hydrogen (up to H/Me ≈ 1.5) at room temperature and 0.6 MPa pressure without preliminary activation. It is shown that released hydrogen restores oxide films formed on the material during hydrogenation ensuring surface self-purification.
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