A probe has been developed to determine the solubility of hydrogen in metals. The method is based on mass balance and high-pressure hydrogen produced in situ partitioning between a zirconium probe and the metal. As an example, the solubility of hydrogen in copper, SH in Cu, has been determined between 350 and 450 °C: SH\,in\,Cu=(1000±200)exp(-43000±1300RT)[mol H2/m3MPa].This solubility agrees with permeation and diffusivity measurements spanning 10 and 6 orders of magnitude, respectively.

sieverts solubility hydrogen copper, zirconium chemical potential probe
Journal of Phase Equilibria and Diffusion
Department of Mechanical and Aerospace Engineering

Corrigall, J.L. (J. L.), St Louis, C. (C.), Coleman, C.E. (C. E.), & McRae, G. (2020). A Chemical Potential Probe to Determine the Solubility of Hydrogen in Metals: An Example with Copper. Journal of Phase Equilibria and Diffusion. doi:10.1007/s11669-019-00776-2