The effect of calcium on the texture, microstructure and mechanical properties of extruded Mg-Mn-Ca alloys

▶ Observation of characteristic “rare earth” texture resulting from the addition of Ca. ▶ Improvement in the tension compression asymmetry due to Ca addition. ▶ Solution treatment prior to extrusion is shown to have a marked effect on the extrusion force, but minimal effect on the extruded grain size. ▶ TEM analysis has shown that the Mn particles and Mg2Ca eutectic phase both exist in the microstructure. Mn and Ca do not form an additional phase.