Research Article

[Retracted] Influence of Al Content on Degradation Behavior of Cu-Doped Mg-Al Alloys for Drill-Free Plugging Applications

Figure 6

SEM micrographs after removing the degradation products: (a) AC02 alloy immersed for 2 h, (b) AC32 alloy immersed for 4 h, (c) AC52 alloy immersed for 4 h, and (d) AC92 alloy immersed for 13 h in 3.5% NaCl solution.