| About this Abstract |
| Meeting |
2016 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Modification of Phase Evolution Pathways in Nanocrystalline Metallic Thin Films |
| Author(s) |
Megan G Emigh, Pralav Shetty, |
| On-Site Speaker (Planned) |
|
| Abstract Scope |
The scientific foundation for the interaction between microstructure and phase transformation kinetics within nonequilibrium thin metallic films, including but not limited to bond coats or other nickel-based superalloy derivatives, remains limited. The accelerated and modified aging behavior of fine grain metallic coatings will be presented to elucidate the important role of grain boundary character on the rapid formation of strengthening second phases or protective oxide scales. Using a combination of customized physical vapor deposition methods, state of the art in situ microscopy techniques and small scale mechanical characterization methods, grain boundary character has been systematically varied in an effort to identify a scientific basis for the observed alternative phase evolution pathways and concomitant impact on performance. It is hoped that this basis will lead to a more systematic approach to the design of high performance coatings in harsh environments within developing ICME frameworks. |
| Proceedings Inclusion? |
Planned: A print-only volume |