About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Seeing is Believing -- Understanding Environmental Degradation and Mechanical Response Using Advanced Characterization Techniques: An SMD Symposium in Honor of Ian M. Robertson
|
Presentation Title |
Seeing is Believing: Contributions of Advanced Electron Microscopy Techniques to Understanding Materials Degradation in Energy Systems |
Author(s) |
M Grace Burke |
On-Site Speaker (Planned) |
M Grace Burke |
Abstract Scope |
As demonstrated extensively by Professor Ian Robertson, advanced electron microscopy techniques – including novel in situ TEM techniques – have played a crucial role in developing our understanding of materials degradation phenomena, such as hydrogen embrittlement, that have impacted the mechanical performance of structural materials. The demanding environments associated with nuclear power systems are particularly detrimental to the performance of structural alloys. Advancements in TEM/STEM instruments coupled with significant improvements in EDXS and EELS, have enabled the identification and characterization of the nanoscale changes in microstructure that are associated with the degradation of mechanical properties. Specifically, special in situ holders now permit materials to be examined in liquids and gases so that localised environmental reactions can be studied in real time in the TEM/STEM. This presentation will highlight the role of advanced AEM in improving the understanding of environment-sensitive degradation phenomena in steels and Ni-base alloys |
Proceedings Inclusion? |
Planned: |