| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2024
|
| Presentation Title |
Research Towards Sintering Improvement During Press and Sinter Processing of Mg and Mg Alloy Powders |
| Author(s) |
Steven C. Johnson, William A Caron |
| On-Site Speaker (Planned) |
Steven C. Johnson |
| Abstract Scope |
Consolidation of magnesium (Mg) alloy powders by near shape forming methods offers significant opportunity for structural material light weighting. Experimental results to date indicate that Mg/Mg alloy powders can be consolidated using press and sinter processing to some extent. Attaining full density of Mg/Mg alloy powders using solid and liquid state sintering is difficult apparently due to the presence of adsorbed and/or absorbed surface oxide layers impeding interparticle sintering. In this work, thermodynamic modeling was applied to determine the equilibrium oxide(s) formed at low O<sub>2</sub> concentrations on pure Mg and several Mg powder alloys. Complimentary sintering experiments in O<sub>2</sub> free inert atmospheres were subsequently performed to investigate interparticle neck formation during sintering. Additionally, all sintered powder compacts were characterized for density, microstructure, phase development, and microstructure composition. Results of this work are intended to increase understanding of solid and liquid state sintering of Mg/Mg alloy powders. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnesium, Powder Materials, |