中文摘要：

动态机械分析(直接存储器存取) 被使用系统地调查抑制当演员组 hypoeutectic Mg-Ni 合金的性质的低频率。结果证明当演员组 hypoeutectic Mg-Ni 合金展出抑制能力的高度。抑制曲线的紧张振幅依赖者与紧张振幅有关强烈有它的自己的特殊特征，抑制在是。抑制和当演员组 hypoeutectic Mg-Ni 合金的机械性质上的最容易溶解的阶段的效果也详细被讨论。

英文摘要：

Dynamic mechanical analysis （DMA） was applied to systematically investigate the low frequency damping properties of as-cast hypoeutectic Mg-Ni alloys. The results show that the as-cast hypoeutectic Mg-Ni alloys exhibit high damping capacities. The strain amplitude dependent damping curve has its own special characteristic, in which the damping is strongly related to the strain amplitude. The effect of the eutectic phase on damping and the mechanical properties of as-cast hypoeutectic Mg-Ni alloys were also discussed in detail.