Complex Precipitation Sequences of Al-Cu-Li-(Mg) Alloys Characterized in Relation to Thermal Ageing Processes

Zhen Gao, Jiang-Hua Chen†, Shi-Yun Duan, Xiu-Bo Yang, Cui-Lan Wu

Fig.7 HAADF-STEM images of samples treated with NA60 days plus ageing at 180°C for various times: a 28 h, b 52 h, viewed along a <011>Al direction