| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nanostructured Materials in Extreme Environments III
|
| Presentation Title |
Heat And Force-Resistance of Nanograined Ni Depends on Grain Boundary Energy |
| Author(s) |
Yuexin Chu, Yi Li |
| On-Site Speaker (Planned) |
Yuexin Chu |
| Abstract Scope |
The inherent thermal and mechanical instability of nanograined (NG) materials poses a significant challenge to their processing, serving as the primary bottleneck in their technological application. Reducing grain boundary (GB) energy being the most widely strategy to design stabilizing NG metals. Alloying and deforming can induce grain boundary relaxation, however, obtaining the pure-bulk NG materials using these methods is difficult. Here, we found that by manipulating the electrodeposition parameters, it is possible to directly create low energy grain boundaries. Pure nickel samples were prepared through electrodeposition with a same grain size of 20 nm and varied GB energies of 0.45, 0.20, and 0.11 kJ/m^2. The interrelated effect of grain boundary energy on grain growth and indentation creep behaviors was investigated. Lower grain boundary energy is associated leads to higher thermal and mechanical stability. This study introduces a novel approach to the synthesis of bulk-stabilized NG materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Copper / Nickel / Cobalt, Nanotechnology, Other |