This study addresses the role of rejuvenation process on the fluctuation of atomic-level stresses and nanoscale topological heterogeneity in ZrCuNiAl bulk metallic glass (BMG). Based on atomic force microscopy (AFM) results, the rejuvenation process leads to an increase in nanoscale spatial heterogeneity manifested by the intensification of the local viscoelastic response of the BMG nanostructure. It means that the rejuvenation process induces more loose-packing structures which behave towards an external load in a viscoelastic way. Hence, it is suggested that the alteration of such heterogeneity may be attributed to the variation of positional atomic rearrangement during the evolution of structural rejuvenation. On the other side, the synchrotron X-ray diffraction (XRD) results indicate that the rejuvenation intensifies variation of internal stresses at the atomic level. This conclusion unfolds that the increase of atomic-level stresses during rejuvenation induces structural disordering and nanoscale heterogeneity in the amorphous material.

这项研究致力于振兴过程对ZrCuNiAl大块金属玻璃（BMG）中原子级应力和纳米级拓扑异质性波动的作用。基于原子力显微镜（AFM）的结果，复兴过程导致纳米级空间异质性的增加，这表现为BMG纳米结构的局部粘弹性响应的增强。这意味着振兴过程会产生更多的松散堆积结构，这些结构以粘弹性方式作用于外部载荷。因此，建议这种异质性的改变可能归因于结构复兴过程中位置原子重排的变化。另一方面，同步加速器X射线衍射（XRD）结果表明，再生能增强内应力在原子水平上的变化。该结论表明，在回春过程中原子能级应力的增加会导致非晶态材料出现结构紊乱和纳米级异质性。