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PROPERTIES SUBJECT TO BASIC METALS IN LIGHT ALLOYS

PROPERTIES SUBJECT TO BASIC METALS IN LIGHT ALLOYS

Alloying element

Base metal

Aluminum

Magnesium

Titanium

Aluminum Gives the ability to harden with aging Improves weldability and high temperature properties, imparts good low temperature toughness
Chrome and vanadium Increases plasticity at room temperature and sensitivity to heat treatment
Copper Gives the ability to harden with aging; Improves machinability (cutting) and high-temperature mechanical properties
Lithium Reduces the density, increases the modulus of elasticity and the ultimate strength, gives the ability to harden with aging
Magnesium Increases corrosion resistance, improves machinability (cutting), gives the ability to harden with aging, together with manganese strengthens deformable alloys
Manganese Increases corrosion resistance, together with magnesium strengthens deformable alloys Increases corrosion resistance and improves high temperature moldability Increases strength at high temperatures, improves bonding
Silicon Improves casting properties, increases corrosion resistance, but impairs machinability (cutting); Together with magnesium gives the ability to harden with aging Improves casting properties, but reduces ductility
Thorium, zirconium and rare earth elements Improves high temperature properties
Tin Improves weldability
Zinc Gives the ability to harden with aging Increases corrosion resistance, improves high temperature properties, strengthens