The work hardening behavior of bulk metallic glasses has not been previously ascribed to their intrinsic structure but rather to the introduction of other components that act as hardening elements. Here, we present clear evidence of a 2D gradient rejuvenation state that can induce tailored hardening of a monolithic bulk metallic glass. We show that the local free volume content related to the rejuvenation state controls the shear band angle and the maximum effective shear stress. Hence, shear band propagation is prohibited, and the formation of a complete shear plane transecting the whole specimen is blocked. The generation of plastic strain is accompanied by an increase in the critical shear stress, resulting in sustainable apparent hardening. In this way, we present a bulk metallic glass that has a tailored hardening mechanism and establish an experimental link between a gradient rejuvenation state and mechanical properties.

块状金属玻璃的加工硬化行为先前并未归因于其固有结构，而是归因于其他用作硬化元素的组件的引入。在这里，我们提供了2D梯度回春状态的明确证据，该状态可以引起整体金属玻璃的定制硬化。我们表明，与回春状态有关的局部自由体积含量控制着剪切带角和最大有效剪切应力。因此，禁止剪切带传播，并且阻止了横切整个样本的完整剪切平面的形成。塑性应变的产生伴随着临界剪切应力的增加，导致可持续的表观硬化。通过这种方式，