Abstract:
Effect of Ca addition on the changes in morphology of hypoeutectic Mg–1.15Si alloy has been studied.
The addition of Ca has resulted in morphological changes
in a-Mg halos by refining it from coarse dendrites to finer
shape structure and the lamellar eutectic Mg2Si phase
changes to fine fiber type structure. The formation of Ca
containing precipitate and its modifying mechanisms in
Mg–Si alloys is also investigated.
