This paper explores the temporal scaling behavior induced shear-branching structure in response to variant temperatures and strain rates during plastic deformation of Zr-based bulk metallic glass (BMG). The data analysis based on the compression tests suggests that there are two states of shear-branching structures: the fractal structure with a long-range order at an intermediate temperature of 223 K and a larger strain rate of 2.5 × 10−2 s−1; the disordered structure dominated at other temperature and strain rate. It can be deduced from the percolation theory that the compressive ductility, ec, can reach the maximum value at the intermediate temperature. Furthermore, a dynamical model involving temperature is given for depicting the shear-sliding process, reflecting the plastic deformation has fractal structure at the temperature of 223 K and strain rate of 2.5 × 10−2 s−1.
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机译：本文探讨了Zr基大块金属玻璃（BMG）塑性变形过程中随温度和应变率变化而引起的时间尺度行为引起的剪切分支结构。基于压缩试验的数据分析表明，剪切支化结构有两种状态：中间温度为223 K时具有长程有序的分形结构，且应变率较大，为2.5×10 −2 s −1 ;在其他温度和应变速率下，无序结构占主导。从渗流理论可以推断出，压缩延性ec可以在中间温度达到最大值。此外，给出了一个涉及温度的动力学模型来描述剪切滑动过程，反映了塑性变形在温度223 K和应变率2.5×<10 −2 s 时具有分形结构。 -1 。
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