Xiaojun Gu

TL;DR: The agreement between model and data across numerous independent measures provides evidence for slip avalanches of STZs as the elementary mechanism of inhomogeneous deformation in metallic glasses.

TL;DR: It is found that although these systems span 12 decades in length scale, they all show the same scaling behavior for their slip size distributions and other statistical properties, and the size distributions follow the same power law multiplied with the same exponential cutoff.

TL;DR: In this paper, high-speed imaging directly correlates the propagation of a particular shear band with mechanical measurements during uniaxial compression of a bulk metallic glass, showing that shear occurs simultaneously over the entire shear plane, and load data, synchronized and time-stamped to the same clock as the camera, reveal that sliding is coincident with the load drop of each serration.

TL;DR: The results imply that the frictional weakening in granular materials and the interplay of damping, weakening and inertial effects in bulk metallic glasses have strikingly similar effects on the slip dynamics, which is important for transferring experimental results across scales and material structures in a single theory of deformation dynamics.

TL;DR: In this article, two distinct types of slip events occur during serrated plastic flow of bulk metallic glasses: small and large slip events are distinguished not only by their size but also by distinct stress drop rate profiles.