Electrochemical studies of hydrogen diffusion and permeability in Ni

摘要: Abstract Values of permeability and diffusivity H in annealed Ni, measured from 25 through 90°C an electrolytic cell, compared well with existing gas-phase data. The was independent concentration solid solution, but evidence trapping by impurity atoms found. There were no indications that planar or line defects contributed to trapping. Subsidiary electrochemical studies the cell indicated fugacity is governed overpotential η, temperature T, parameter Z, whose value 3, agreement literature. necessity controlling embrittlement underscored experimental