|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Bulk Metallic Glasses XIV
||A Study on the Formation and Propagation Behavior of Shear Bands in Metallic Glasses
||Ke-Fu Yao, Guan-Nan Yang, Yang Shao
|On-Site Speaker (Planned)
It is known that metallic glasses deform through formation and propagation of shear bands. But the shear band formation, propagation, and fine structure within shear band and its evolution are still not clear, despite of that considerable attentions have been focused on studying the basic structure of shear bands and their related properties. Recently, we have investigated and characterized the formation and propagation behaviors of shear bands in metallic glasses by using high-resolution transmission electron microscopy, including the temperature rise in the shear bands by a model considering the simultaneous heat generation and dissipation based on heat transfer theory. It shows that there exists fine structure change within the shear bands. Nano-void formation and coalescence within the shear bands have been clearly observed. When the stress drop caused by shear band formation is small, the temperature rise is small. Then, the deformation mechanism of metallic glasses has been discussed.
||Planned: Supplemental Proceedings volume