Influence of aging temperature on corrosion behavior of Al–Zn–Mg–Sc–Zr alloy

• Investigate effect of aging temperature on corrosion behavior of an Al–Zn–Mg–Sc–Zr alloy.
• Find the relationship between corrosion and microstructures of the studied alloy.
• Corrosion behavior is determined using both electrochemical and immersion tests.
• Improvement is due to absence of coarse precipitates and precipitate-free zones.

Al–Zn–Mg–Sc–Zr alloy sheets were prepared using water chilling copper mould ingot metallurgy pro