| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
High Intensity Electric Nano Pulsing Technology for Rapid Materials Processing and Sintering |
| Author(s) |
Runjian Jiang, Eugene Olevsky, Elisa Torresani, Andrii Maksymenko, Wenwu Xu |
| On-Site Speaker (Planned) |
Runjian Jiang |
| Abstract Scope |
A new field-assisted materials processing technology based on electric nano pulsing (ENP) has been proposed. An innovative prototype device has been constructed, featuring ultra-high intensity (~10ııA/m²), ultra-short duration (<1μs), and ultra-high frequency (up to 100 kHz). Due to its capabilities of rapid Joule heating and strong field effects, this novel technology can activate non-equilibrium evolutions of localized microstructures, such as grain boundaries (GBs) or grain interiors (GIs), at nanometer spatial scales and nanosecond temporal scales. Using a Ni-based superalloy as an example, several ENP-induced phenomena of microstructure evolution are presented, including grain boundary modification, surface nanocoating, and rapid precipitation. The ENP technology offers a practical tool for exploring the intrinsic mechanisms of electric-field effects and provides a pathway toward the rapid industrial manufacturing of materials with unique properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Process Technology, Powder Materials, Characterization |