| Autor: |
Ge, Jiacheng, Luo, Peng, Wu, Zhenduo, Zhang, Wentao, Liu, Sinan, Lan, Si, Almer, Jonathan D., Ren, Yang, Wang, Xun-Li, Wang, Weihua |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Materials Research Letters. 11:547-555 |
| ISSN: |
2166-3831 |
| Popis: |
Studying the flow behavior is critical to understand the deformation mechanism of amorphous solids. However, detecting the basic flow events in amorphous solids is challenging. Here, by simultaneous SAXS/WAXS, elementary flow carriers in wound metallic glasses are identified from flow-induced structural heterogeneities with a radius of gyration of 2.5∼3.5 nm. Their size increases and morphology changes from sphere-like to rod-like under flow. Moreover, the atomic structure exhibits an unusual change to a more disordered state during winding/annealing at the temperature of ∼0.8 Tg. This work provides an atomic-to-nanoscale description of the flow carriers of amorphous solids during deformation. Impact Statement The elementary flow carriers in metallic glasses have a radius of gyration of 2.5∼3.5 nm. During flow, their size increases and morphology changes from sphere-like to rod-like. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
