Damping properties of Mg–Ca binary alloys

The dynamic mechanical analysis (DMA) was applied to investigate the damping properties of Mg–Ca binary alloys both at room and elevated temperatures. The results show the as-cast Mg–1 wt%Ca binary alloy exhibits good damping capacities, which could be of a potential candidate for damping magnesium alloys. The Ca has greatly effect on the damping properties of Mg–Ca alloys. In addition, the damping measurement of Mg–1 wt%Ca alloy with increasing temperature has also been carried out. The damping mechanisms were also discussed.