In the current study, Zr-based metallic glass matrix composites (MGMCs) were prepared by doping high-melting point of tantalum powders and investigated by dynamic mechanical analysis. The results suggest that the relaxation processes are changed by modifying the chemical composition. The influence of crystalline phase on the dynamic mechanical response of Zr-based MGMC has been analyzed. The master curves of loss modulus can be well fitted by the Kholrausch-Williams-Watts (KWW) model, decreasing of the parameter ${\beta }_{\mathit{KWW}}$ implies that the Zr-based MGMC doped with more tantalum powders has higher dynamic heterogeneity. To better understand the dynamic mechanical properties of the MGMCs, quasi-point defects (QPD) theory is adopted, the kinetic characteristics of glass transition of Zr-based MGMCs are analyzed in a quantitative manner. The experimental results provide an insightful information on the complex structural relaxation of the metallic glass matrix composite.

在当前的研究中，通过掺杂高熔点的钽粉来制备Zr基金属玻璃基复合材料（MGMC），并通过动态力学分析进行了研究。结果表明，通过改变化学组成可以改变弛豫过程。分析了晶相对Zr基MGMC动态力学响应的影响。损耗模量的主曲线可以通过Kholrausch-Williams-Watts（KWW）模型很好地拟合，减少参数${\beta }_{\mathit{KWW}}$这表明掺有更多钽粉的Zr基MGMC具有更高的动态异质性。为了更好地理解MGMC的动态力学性能，采用准点缺陷（QPD）理论，对Zr基MGMC的玻璃化转变动力学特性进行了定量分析。实验结果为金属玻璃基复合材料的复杂结构弛豫提供了有见地的信息。