학술논문
용융동 및 동 - 규소 합금내의 수소확산
The Diffusion of Hydrogen in Liquid Copper and Copper - Silicon Alloys
The Diffusion of Hydrogen in Liquid Copper and Copper - Silicon Alloys
Document Type
Article
Author
Source
대한금속재료학회지 / Korean journal of metals and materials. Jun 30, 1975 13(2):137
Subject
Language
Korean
English
English
ISSN
1738-8228
Abstract
순수 용융동 내에서의 수소의 확산계수를 unsteady-state gas liquid metal diffusion cell방법을 이용해서 구하였다. Diffusion cell은 1기압의 수소를 포함하는 알루미나관을 정지상태의 용융동내에 삽입시킴으로서 형성된다. 확산계수는 Fick의 제2법칙의 해를 변형시킨 식을 이용해서 계산하였다. 수소의 확산계수에 대한 silicon 합금 원소의 영향도 고찰하였다. 정지상태의 순수 용융동 속으로의 수소의 흡수 속도는 확산에 의해서 지배됨을 알 수 있었다. 순수 용융동 내에서의 수소의 확산계수, D_H는 1090℃에서 1205℃의 온도 범위에서는 다음과 같은 식으로 표시된다. D_H=5.028×10^(-2)=exp (-2,628±1,290/RT)㎠/sec
The diffusivity of hydrogen in pure liquid copper was determined by an unsteady-state gas liquid metal diffusion cell technique. The diffusion cell was formed by immersing an alumina tube containing hydrogen gas at 1 atm. in a bath of stagnant liquid copper. Diffusivities were calculated from the appropriate solution of Fick`s 2nd law. The effect of silicon, an alloying element, on the diffusion of hydrogen was also investigated. The absorption of hydrogen in stagnant pure liquid copper has been found to be diffusion controlled. The calculated diffusivities, D_H for hydrogen in pure liquid copper can be described by the equation: D_H=5.028×10^(-2)=exp(-2,628±1,290/RT)㎠/sec in the temperature range of 1,090℃-1,205℃.
The diffusivity of hydrogen in pure liquid copper was determined by an unsteady-state gas liquid metal diffusion cell technique. The diffusion cell was formed by immersing an alumina tube containing hydrogen gas at 1 atm. in a bath of stagnant liquid copper. Diffusivities were calculated from the appropriate solution of Fick`s 2nd law. The effect of silicon, an alloying element, on the diffusion of hydrogen was also investigated. The absorption of hydrogen in stagnant pure liquid copper has been found to be diffusion controlled. The calculated diffusivities, D_H for hydrogen in pure liquid copper can be described by the equation: D_H=5.028×10^(-2)=exp(-2,628±1,290/RT)㎠/sec in the temperature range of 1,090℃-1,205℃.