|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Bulk Metallic Glasses XV
||Spatio-temporal Correlation in Rheology of Metallic Glasses
||Shuangxi Song, Mingwei Chen
|On-Site Speaker (Planned)
Plastic deformation of metallic glasses is usually described by shear transition zones (STZs) which represent shear induced local configuration evolution in the disordered system. Theoretically, several models have been proposed to define STZs from the transition state theory to the cooperative shear model. Accordingly, several delicate experimental methods have been developed to measure STZ sizes. Depending on theoretical models, the STZ sizes estimated from experimental measurements can vary over one order of magnitude which is far beyond the experimental errors. The large disagreement in STZ volumes has caused intense debating and confusion in interpreting the mechanical and dynamic behaviors of metallic glasses. On the basis of experimental observations, in this study we develop a universal scaling law to describe the plastic flow of metallic glasses and reveal the spatio-temporal correlation in rheology of metallic glasses.
||Planned: Supplemental Proceedings volume