采用差示扫描热分析仪DSC/DTA, X射线衍射XRD和透射电镜TEM等分析测试手段研究了Mg-Cu-Ni-Gd系非晶合金的结构驰豫以及机械性能，分析了Ni元素对镁基非晶合金的结构驰豫和机械性能的影响。研究发现,非晶合金在305K下保温180s发生结构驰豫后，出现约1-2nm的中程有序畴。采用Ni元素部分取代Cu元素，增加了抗结构驰豫能力和力学性能。
The structural relaxation and glass-forming ability(GFA) of Mg-Cu-Gd-based glassy alloys and the effect of Ni addition on structural relaxation and mechanical properties were studied by thermal analysis, X-ray diffractometry (XRD) and transmission electron microscopy (TEM). The medium-range order(MRO) zones of about 1-2nm size were observed in the Mg65Cu25Gd10 glassy alloy after structural relaxation caused by annealing for 180s at 305K. Partial substitution of Cu by Ni in Mg-Cu-Gd-based alloys not only improved the mechanical properties, but also increased the stability against structural relaxation.
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