Effect of lithium on the aging characteristics and microstructure of Al-4Mg-1.5Cu-0.4Ag alloys1.

Examines the effect of lithium on the aging characteristics and microstructures of aluminum-copper-magnesium-silver alloys with low copper:magnesium ratio. Alloys preparation by melting and casting under argon atmosphere; Indication that low copper:magnesium ratio aluminum-copper-magnesium alloys containing silver and lithium exhibit promising properties; Implication that the alloy possesses higher tensile properties.