Fig. 1. SRIM calculation result for 3 MeV Al ions in 6061-Al alloy normalized to an ion fluence of 4.367×10¹⁶ cm⁻²

Fig. 2. Precipitates in 6061-Al alloy (all the images are taken at [110] zone axis)

Fig. 3. EDS spectrum of the precipitates in 6061-Al alloy

Fig. 4. Damage zones induced by ion irradiation at different fluences

Fig. 5. Defect clusters at different irradiation fluences

Fig. 6. HRTEM images of 1/3<111> faulted loops at 10 dpa and 20 dpa

Fig. 7. Curves of hardness and indentation depth of 6061 Al alloy before and after ion irradiation