PERMEABILITY OF TITANIUM TO HYDROGEN.
BATTELLE MEMORIAL INST COLUMBUS OHIO DEFENSE METALS INFORMATION CENTER
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While titanium has proved to be a good material for containers for liquid hydrogen, calculations of the rates of diffusion of hydrogen through titanium indicate that there may be practical limits of temperature, pressure, and time that must be recognized in designing containers for hydrogen. These calculations are presented. On the basis of the reported data, it is not believed that titanium and its alloys can be recommended as a container material for hydrogen for long-term service much above 200 F. For short-term service, the permeation to hydrogen may be low up to temperatures near 500 F and at low pressures.