Tensile Properties from Room Temperature to 673 K of Mg-0.9 mass%Ca Alloy Containing Lamella Mg₂Ca

Abstract

Tensile properties were investigated from room temperature to 673 K of a binary Mg–0.9 mass%Ca alloy where Mg₂Ca phase was dispersed as lamella. The 0.2% proof stress significantly increased by the Mg₂Ca phase in the temperature range investigated. It was suggested that strengthening by stable lamella Mg₂Ca in the grains and limitation of deformation related to grain boundaries by Mg₂Ca phase at grain boundaries contribute to improvement of high temperature strength for the Mg–Ca alloy.