|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Bulk Metallic Glasses XIV
||Real-time Studies of the Evolution of Atomic Structures of Bulk Metallic Glasses
||Wei Zhang, Jiawei Mi
|On-Site Speaker (Planned)
The atomic structures of metallic glasses are very sensitive to the heating/cooling rates during processing. Understanding precisely how atomic structures evolve at different heating and cooling conditions, and identifying the critical points where transitions occur between amorphous and crystalline structures have been always the centre of metallic glass research. In this work, we used synchrotron X-ray total scattering and pair distribution function method to investigate, in real-time, the local atomic structural evolution of a Vitreloy-1 alloy subject to different heating and cooling rates. Total X-ray scattering patterns were acquired every second during the experiments of different heating and cooling rates. The evolution of scattering spectra in Fourier space and pair distribution functions in real space identified the critical temperatures for phase transition. Detailed analyses revealed that the reconfigurations of Zr-Zr, Zr-Cu, Cu-Cu partial atomic pairs play the dominant roles in controlling the evolution and changes of atomic structures.
||Planned: Supplemental Proceedings volume