| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nanostructured Materials in Extreme Environments II
|
| Presentation Title |
Direct Observation of Extreme Mechanical Energy Transfer and Healing of Damage from Repeat Shock-loading in Stabilized Nanocrystalline Cu-Ta Alloys |
| Author(s) |
Anit K. Giri, Phil Jannotti, Chad Hornbuckle, Kiran Solanki, Naresh Thadhani, Greg Kennedy, Nicholas Lorenzo, Kris Darling |
| On-Site Speaker (Planned) |
Anit K. Giri |
| Abstract Scope |
The absorption of energy by matter is a fundamental occurrence in both natural and human-made processes. However, despite this ubiquity, the development of materials capable of withstanding extreme energy fields without degradation continues to be a significant challenge for human-civilization. Although materials science has made strides in creating materials resistant to different energy fluxes, the absorption and transfer of mechanical energy pose ongoing difficulties. This challenge is particularly pronounced when it comes to intense mechanical energy transfer from shock loading. However, this study explores a novel phenomenon in stabilized nanocrystalline Cu-Ta alloys that can absorb and heal from even multiple dynamic shock-loading events, unlike all other known metals. The microstructural features of nanocrystalline Cu-Ta are shown to withstand repeated shock-wave interactions at pressures up to 15 GPa without any evidence of microstructural damage or deterioration, highlighting the material's impressive capacity to be virtually immune to the detrimental effects of shock-loading. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Copper / Nickel / Cobalt, Powder Materials, Characterization |