Method for storing hydrogen in a metallic base material by means of a direct hydrogen enrichment, and hydrogen-containing material which can be obtained thereby and use thereof

A method for storing hydrogen in a metallic base material with formation of metal hydrides,

• wherein said metallic base material is
• (i) an Al—Mg alloy, or
• (ii) aluminium, or
• (iii) magnesium,
• and wherein the method comprises the following steps:
• a) feeding H2 into a melt of the base material to enrich the base material with H2, wherein during the enrichment the melt is in a space or container, referred to as “melt container” in the following, and the enrichment of the melt with H2 is effected by feeding H2 into the melt container so that the melt contained therein is flowed through with H2, and wherein the feeding of H2 is carried out at a temperature which
• in the case of the use of an Al—Mg alloy
• is at least as high as the solidus temperature of the Al—Mg alloy, or
• in the case of the use of an Al-melt or Mg-melt
• is at least as high as the melting temperature of aluminium or of magnesium;
• b) rapid cooling of the melt at a cooling rate of at least 500 K/s, for the purpose of solidification of the melt.