Tensile properties from room temperature to 673 K of Mg-0.9 mass%Ca alloy containing lamella Mg2Ca

Tensile properties were investigated from room temperature to 673 K of a binary Mg-0.9 mass%Ca alloy where Mg 2 Ca phase was dispersed as lamella. The 0.2% proof stress significantly increased by the Mg 2 Ca phase in the temperature range investigated. It was suggested that strengthening by stable lamella Mg 2 Ca in the grains and limitation of deformation related to grain boundaries by Mg 2 Ca phase at grain boundaries contribute to improvement of high temperature strength for the Mg-Ca alloy.