SOLUBILITY OF HYDROGEN IN LIQUID IRON ALLOYS

Abstract

The solubility of hydrogen in liquid pure iron and liquid binary iron alloys has been measured by Sieverts' method and by the sampled method. The experimental results on activity coefficients of hydrogen in liquid Fe-C- Si alloys are in better agreement with the values calculated by using Wagner's equation than those obtained by the graphical method. The solubility of hydrogen obtained by the sampled method shows satisfactory agreement with the value obtained by Sieverts' method in the case of Fe-Cr, Fe- Mn and Fe- Mo alloys, but distinct difference is shown in Fe-S alloys.