【摘要】 通过高温粘度计对镁铝合金在液相线以上不同温度的粘度进行测量。结果表明,镁铝合金熔体的粘度随着温度的升高而降低,且符合Arrhenius公式。通过热力学通用几何模型对Eyring模型进行修正,得到一种新的预报二元镁铝合金熔体粘度的数学模型,并用测得的Mg-Al合金熔体粘度进行验证,预报的粘度数据和实验结果吻合较好。更多还原

【Abstract】 The viscosities of Mg-Al alloys at different temperatures above liquidus phase line were measured by high temperature viscometer. The results show that the viscosity of melted Mg-Al alloy decreases with the increase of temperature and conforms to Arrhenius formula. Eyring model is modified by thermodynamic general geometric model, a new mathematical model for predicting the melted viscosity of binary magnesium aluminum alloy is obtained, and the melted viscosity of Mg-Al alloy is testified, the predicted viscosity data are consistent well with the experimental results.更多还原