对6082铸造铝合金在相同样品量不同升温速率及6016铸造铝合金在相同升温速率不同样品量下进行差示扫描量热分析（DSC）曲线的测定，并对比分析了曲线各峰值的形状及对应温度的变化情况。 结果表明：升温速率在2~40 ℃·min^-1区间时，随着升温速率的增加，铸造铝合金DSC曲线的峰面积增大，峰值温度明显向高温处偏移，相邻吸热峰的分离能力下降；升温速率越慢，DSC曲线的峰面积就越小，有利于相邻吸热峰的分离，不利于较小吸热峰的显现。 在10 ℃·min^-1 升温速率下，随着样品量的增大，铸造铝合金DSC曲线上的吸热峰向高温处偏移，起始点温度的变化要小于峰值温度的变化，吸热峰面积也随之增大。 DSC曲线中吸热峰的外推起始点温度在实际应用中最具指导意义，其反映了材料转变的内在性质，受升温速率和样品量的影响不大。

The differential scanning calorimetry (DSC) curves of 6082 cast aluminum alloy with the same sample weight and different heating rates and 6016 cast aluminum alloy with the same heating rate and different sample weights were measured, and the shape of each peak value of the curve and the change of corresponding temperature were compared and analyzed. The results show that when the heating rate is in the range of 2~40 ℃·min^-1, with the increase of heating rate, the peak area of DSC curve of cast aluminum alloy increases, the peak temperature obviously shifts to high temperature, and the separation ability of adjacent endothermic peaks decreases. The slower the heating rate, the smaller the peak area of DSC curve is, which is conducive to the separation of adjacent endothermic peaks and is not conducive to the appearance of smaller endothermic peaks. At the heating rate of 10 ℃·min^-1, with the increase of sample weight, the endothermic peak on the DSC curve of cast aluminum alloy shifts to high temperature, the change of starting point temperature is less than that of peak temperature, and the area of endothermic peak also increases. The extrapolation starting point temperature of endothermic peak in DSC curve has the most guiding significance in practical application, which reflects the internal properties of material transformation and is not affected by heating rate and sample weight.