| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2025
|
| Presentation Title |
Vacancy-Induced Solute Clustering in Binary Magnesium Alloys |
| Author(s) |
Sreenivas Raguraman, Zehao Li, Homero Reyes Pulido, Michael Falk, Arun Devaraj, Timothy Weihs |
| On-Site Speaker (Planned) |
Sreenivas Raguraman |
| Abstract Scope |
Vacancies in metals drive solute diffusion and clustering, impacting microstructure and alloy performance. This study explores how alloying elements and quenching from homogenization temperatures influence vacancy-induced solute clustering in Mg alloys. We investigate Mg-Al, Mg-Zn, and Mg-Y alloys, homogenized and quenched from 450°C to retain excess vacancies. Positron Annihilation Spectroscopy (PAS) quantifies vacancy concentrations, while Atom Probe Tomography (APT) maps solute clusters. Scanning Electron Microscopy (SEM) and XRD provide additional insights, complemented by Molecular Dynamics (MD) simulations for atomic-scale understanding. Initial results show pronounced clustering in Mg-Al and Mg-Zn alloys. This study highlights the role of alloy chemistry in vacancy-driven clustering, offering a framework to tune Mg alloy microstructures for structural and biomedical applications, where controlled clustering enhances mechanical and corrosion properties.
|
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnesium, Characterization, Mechanical Properties |