Open Access

Table 1

Alloying elements on specific properties of Mg-based alloys.

Alloy element Casting, melting, mechanical and corrosion behaviour
Ag Mechanical properties: improves high temperature tensile and creep resistance when alloyed with rare earth elements.
Corrosion properties: detrimental to corrosion behaviour.
Al Casting behaviour: increases casting behaviour and lead to microporosity.
Mechanical behaviour: solid solution and precipitation hardening.
Corrosion properties: minimum effect observed.
Ca Casting behaviour: Excellent grain refining and suppress oxidation.
Mechanical behaviour: improves creep resistance.
Corrosion behaviour: poor corrosion resistance.
Li Casting behaviour: increases evaporation and burning behaviour.
Mechanical behaviour: Solid solution hardening effect, reduces density and increases ductility.
Corrosion behaviour: decreases corrosion resistance.
Mn Casting behaviour: precipitation of fine Fe-Mn precipitates.
Mechanical behaviour: increases creep resistance.
Corrosion behaviour; improves corrosion with Fe in the alloy.
Rare earth Casting behaviour: improve castability and reduces microporosity.
Mechanical behaviour: precipitation hardening and solid solution strengthening at both room and high temperatures improving tensile and creep properties.

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