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Vol.13, No.4, 391 ~ 397, 1975
Title
The Permeation of hydrogen in Liquid silver - Copper Alloys
진억용Eog Young Chin, 이재영Jai Young Lee
Abstract
The rate of absorption of hydrogen in stagnant liquid silver-copper alloys has been measured using a steady state gas-liquid metal diffusion cell technique. The appropriate solution of Fick`s first law has been used to calculate the hydrogen permeability (R_H). The rate of hydrogen dissolution in liquid silver-copper alloys has been found to be controlled by diffusion of hydrogen in liquid metal. Permeabilities of hydrogen in liquid silver-copper alloys in the temperature range of 1000℃ to 1160℃ can be described by the following Arrhenious type equations; R_H pure Ag=5.47×10^(-4)exp{(-16872.9±700.0)/RT} wt% ㎠/sec R_H Ag-1% Cu alloy=2.27×10^(-4)exp{(-13859.6±1068.7)/RT} wt% ㎠/sec R_H Ag-3% Cu alloy=2.16×10^(-4)exp{(-13227.8±673.9)/RT} wt% ㎠/sec R_H Ag-5% Cu alloy=2.15×10^(-4)exp{(-12719.6±1351.4)/RT} wt% ㎠/sec R_H Ag-7% Cu alloy=1.79×10^(-4)exp{(-11909.7±1565.6)/RT} wt% ㎠/sec The permeability of hydrogen in liquid silver-copper alloys increased and the activation energy of permeation of hydrogen decreased with increasing copper concentration at constant temperature.
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