| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2023
|
| Presentation Title |
Solid Phase Processing of Mg-Al-Mn-Ca for High Strength and Ductility |
| Author(s) |
David Garcia, Hrishikesh Das, Kumar Sadayappan, Peter Newcombe, Darrel Herling, Glenn J Grant, Mageshwari Komarasamy |
| On-Site Speaker (Planned) |
David Garcia |
| Abstract Scope |
While rare-earth Mg alloys have shown remarkable properties for high strength applications, lower cost alternatives are necessary for the widespread industry use of Mg. Ca added Mg alloys have shown promise as an alternative to rare-earth alloys. Ca-based precipitates can reduce basal texture, reduce casting porosity, and increase mechanical strength. However, the accumulation of Ca-based precipitates along inter-dendritic regions can severely limit ductility. Here, we apply two solid phase processing techniques, friction stir processing and shear assisted processing and extrusion, to produce locally modified processing region and extruded tubes, respectively in a cast Mg-Al-Mn-Ca alloy. Ductility of the alloy is enhanced by densification under applied force and elevated temperature, and refinement of (Al,Mg)-Ca based precipitates; strength improvement is attained via grain refinement, and isotropic properties via random texture. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnesium, Shaping and Forming, Mechanical Properties |