Diffusion in Hydrogen Storage Alloys This volume presents a summary of relevant diffusion data. Enormous amount of research has been expended on the option of storing the hydrogen in solid metal alloys. The loading of metals with hydrogen and its extraction depends upon several processes. It is found that the slowest and therefore the rate determining process is hydrogen diffusion in the solid. Keywords: Chromium Based Alloys Magnesium Based Alloys Manganese Based Alloys Nickel Based Alloys Titanium Based Alloys Vanadium Based Alloys Zirconium Based Alloys Fisher summarizes diffusion data relevant to storing hydrogen in metal to keep it from exploding during storage transport or use as a fuel. The ability of certain meals to occlude hydrogen in a reversible manner—thus making the storage of the gas as practical as the storage of electrical energy by conventional batteries—was discovered in laboratories during the 19th century he says but not until 1967 did research begin to transform that phenomena into practical large scale storage for hydrogen as a fuel. He covers alloys based on chromium magnesium manganese nickel titanium vanadium and zirconium. — Engineering— Materials science— Metals