Calculation of hydrogen solubility in molten alloys
(Key Laboratory of Advanced Materials Processing Technology, MOE,
Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China)
Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China)
Abstract: A thermodynamic model was developed to calculate the hydrogen solubility in molten alloys based on the hydrogen solubility in constitutional pure liquid metals and their interaction parameters. The calculated results have a good agreement with the documented experimental results. The closer the molten alloy to an ideal liquid is, the more accurate the calculated results are. The compound forming ability and molar mixing heat of the constitutional elements take important roles in influencing the hydrogen solubility in molten alloys.
Key words: hydrogen solubility; molten alloy; interaction parameter