Furthermore, the FLD calculating model of 5A90 Al-Li alloy is built, which is the important foundation to predict the FLD of Al-Li alloy at any temperature.

• 同时，在实验数据的基础上建立了5A90铝锂合金在不同变形温度下的成形极限计算模型，为成形极限曲线的计算和预测提供了重要的依据。