Secondary β relaxation is a fundamental issue to understand the diffusion, plasticity and glass transition behavior of metallic glasses. Binary metallic glasses provide a simple glassy system to probe the dynamic mechanical processes. In the current research, dynamic mechanical behavior of the typical binary metallic glasses was investigated by dynamic mechanical analysis (DMA). The dynamic mechanical relaxation behavior of Cu_50-xTi_50+x (x = 0, 7 and 9) and Cu_xZr_100-x (x = 30, 50, 56, 61.8 and 64) binary metallic glass system was studied. It is found that the β relaxation becomes pronounced with the increase of copper, which is analyzed in the framework of the principle of mixing enthalpy. However, the β relaxation of CuZr or CuTi binary metallic glasses is much more modest than that of Y₆₅Co₃₅, Dy₆₅Co₃₅ and Y₆₇Cu₃₃.

β次生弛豫是了解金属玻璃的扩散，可塑性和玻璃化转变行为的基本问题。二元金属玻璃提供了一个简单的玻璃状系统来探测动态机械过程。在当前的研究中，通过动态力学分析（DMA）研究了典型的二元金属玻璃的动态力学行为。Cu _50-x Ti _{50 + x}（x = 0、7和9）和Cu _x Zr _100-x的动态机械松弛行为研究了（x = 30、50、56、61.8和64）二元金属玻璃系统。发现随着铜的增加，β弛豫变得明显，这是在混合焓原理的框架内进行分析的。然而，CuZr或CuTi二元金属玻璃的β弛豫比Y ₆₅ Co ₃₅，Dy ₆₅ Co ₃₅和Y ₆₇ Cu ₃₃的β弛豫要小得多。