Study on the microstructure and corrosion of Al-Zn-Mg-Cu alloy welded joint after heat treatment
The Al-Zn-Mg-Cu high-strength aluminum alloy is widely employed in lightweight load-bearing structures for aerospace and rail transit applications, owing to its exceptional specific strength and excellent processability. Bobbin Tool Friction Stir Welded (BT-FSW) effectively mitigates defects inherent to conventional fu...