(安徽工业大学 机械工程学院，马鞍山 243002)
摘 要: 从材料热力学的角度，推导纯镁及镁合金熔液氢含量的数学模型，并结合已有的镁液中氢的溶解度的测试数据，得出镁熔液中氢的溶解度与镁液温度、氢分压之间的对数关系。该模型所计算的氢热焓值与Ovrelid理论值相吻合；将该数学模型计算值与已知的实测值相比较，该模型的合理性得到验证。
关键字: 镁；镁合金；镁合金熔液；氢含量；数学模型
（School of Mechanical Engineering, Anhui University of Technology, Ma’anshan 243002, China）
Abstract:Based on thermodynamics and acknowledged data, models of hydrogen content in magnesium melt were deduced out. The logarithmic correlation of hydrogen solubility with temperature of magnesium melt and hydrogen partial pressure was obtained. The enthalpy of hydrogen gas calculated by the model is consistent with Ovrelid’ the oretical value. Therefore, the soundness of the models is verified.
Key words: magnesium; magnesium alloy; magnesium alloy melt; hydrogen content; mathematic model
