G040022 bservation of the Diffusion Process of Hydrogen into Metal by Using Vibrating Reed Technique

Abstract

Vibrating reed (VR) technique can measure the Young's modulus which is dependent on the resonant frequency by making a thin board vibrate like a reed. In the previous report, it was shown that VR technique was effective as the way of measuring the degree of the absorption to the metal of hydrogen. Hence, the differences in the resonance frequency were found in some temperature range as a result of measuring the resonance frequency of the metal which absorbed hydrogen in hydrogen atmosphere, and that of the metal which didn't. In this report, after hydrogen was charged into sample SUS304 with the atmospheric pressure or 100MPa, changes in the resonance frequency were investigated in the diffusion process and in the separation process of hydrogen.