Preform cracking in squeeze cast magnesium based composites – effects of tooling temperature

In theory, a magnesium alloy should offer improved mechanical properties (such as higher strength and modulus) when reinforced with silicon carbide particulates or whiskers, as in the case of aluminium composites. However, unlike aluminium composites, the unique properties of magnesium composites are seldom achieved in practice, as reported in most published literature. Most of the magnesium composites reported were made using the squeeze …