Al-Zn-Mg alloy, HAADF-STEM, DFT, formation energy, Precipitation
Al-Zn-Mg-Cu Alloy, corrosion resistance, Grain Boundary Precipitates, Precipitate Free Zone, Transmission electron microscopy
Aluminum Alloy, Stress Corrosion, In-situ Electrochemical, Cu addition, Transmission Electron Microscopy