Hafnium in Aluminum Alloys: A Review

Zhi-Hong Jia, Hui-Lan Huang, Xue-Li Wang, Yuan Xing, Qing Liu

Fig. 13 a Low-magnification bright-field TEM image of Al-7 wt% Si-0.3 wt% Mg-0.5 wt% Hf-0.2 wt% Y alloy. bHAADF-STEM image from the same alloy sample but different areas. Long nanobelt precipitates together with rectangular-shaped precipitates can be seen in both images [61]