The thermal stability and the dynamic mechanical relaxation behavior of (Zr₅₀Cu₄₀Al₁₀)_100-xDy_x (at.%) (x = 0 or 2) metallic glasses were investigated by differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). In the case of the (Zr₅₀Cu₄₀Al₁₀)_100-xDy_x (x = 0 or 2) metallic glasses, atomic mobility increases by introduction of the Dy element. The activation energy of the the main a relaxation process and fragility index were discussed according to the DMA measurements. With the help of the time-temperature superposition (TTS) principle, the master curves of the model alloys were established, the Kohlrausch-Williams-Watts (KWW) function and quasi-point defects (QPD) theory were used to descirbe the master curves of the metallic glasses. The characteristic parameters related to microstructural heterogeneity in the KWW equation and the QPD model, Kohlrausch exponent β_KWW and the correlation factor χ were evaluated. In parallel, the elastic, viscoelastic and viscoplastic responses of the model alloys have been analyzed based on the DMA results. Our investigations demonstrated that introduction of the Dy increases the structure heterogeneity of the (Zr₅₀Cu₄₀Al₁₀)_100-xDy_x (x = 0 or 2) glassy system, which plays an important role in tailoring the dynamic relaxation behavior and mechanical properties of the metallic glasses.

 通过差示扫描量热法(DSC)和动态力学分析研究了(Zr ₅₀ Cu ₄₀ Al ₁₀ ) _100-x Dy _x (at.%) ( x = 0 or 2)金属玻璃的热稳定性和动态力学弛豫行为(DMA)。(Zr ₅₀ Cu ₄₀ Al ₁₀ ) _100-x Dy _x ( x = 0 或 2) 金属玻璃，通过引入 Dy 元素增加原子迁移率。根据DMA测量讨论了主要弛豫过程的活化能和脆性指数。借助时间-温度叠加（TTS）原理，建立模型合金的主曲线，并用Kohlrausch-Williams-Watts（KWW）函数和准点缺陷（QPD）理论描述主曲线的金属眼镜。KWW方程和QPD模型中与微观结构异质性相关的特征参数，Kohlrausch指数β _KWW并评估相关因子χ。同时，基于 DMA 结果分析了模型合金的弹性、粘弹性和粘塑性响应。我们的研究表明，Dy 的引入增加了 (Zr ₅₀ Cu ₄₀ Al ₁₀ ) _100-x Dy _x ( x  = 0 或 2) 玻璃体系的结构异质性，这在调整动态弛豫行为和机械力学方面起着重要作用。金属玻璃的特性。