| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Defect and Phase Transformation Pathway Engineering for Desired Microstructures
|
| Presentation Title |
Deformation Induced Precipitation (DIP): A Cohesive Processing Strategy to Strengthen Magnesium Alloys |
| Author(s) |
Suhas Eswarappa Prameela, Peng Yi, Laszlo J. Kecskes , Michael Falk, Timothy P. Weihs |
| On-Site Speaker (Planned) |
Suhas Eswarappa Prameela |
| Abstract Scope |
Unlike Aluminum alloys, precipitation strengthening of Magnesium alloys has proven challenging. Precipitate density is typically too low, and precipitate size is often too large and elongated to enhance the resistance to plastic deformation significantly. Mimicking recent work in Al alloys, we are exploring how low-temperature plastic deformation can enhance both the density, size, and morphology of common intermetallic particles and thereby lead to significant hardening in Mg alloys. The low temperatures tend to favor nucleation overgrowth, while the deformation provides vacancies and dislocations that can accelerate nucleation. Using varying levels of deformation, and moderate temperatures, we explore the processing and thermodynamic factors controlling nucleation and growth of precipitates in Mg-Al and Mg-Zn binary alloys. |
| Proceedings Inclusion? |
Planned: |