About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys V: Mechanical Behavior
|
| Presentation Title |
Nanoindentation Responses of Magnesium Lithium Based Alloys |
| Author(s) |
Chiamaka Okafor, Norman Munroe |
| On-Site Speaker (Planned) |
Chiamaka Okafor |
| Abstract Scope |
Nanomechanical and microstructural assessment were conducted for plastically deformed Mg-Li based alloys. Significant grain refinement and crystallographic reorientation were observed mostly in alloys rich with alpha Mg phases. Diverse nanoindentation techniques revealed that hardness, strength, strain hardening and strain rate sensitivity varied with lithium concentration and microstructures phase transformation from hexagonal close pack (HCP) to body centered cubic (BCC) matrix. These structural shifts enhanced dislocation mobility and altered the deformation responses of the alloys. At lower lithium concentrations, plastic deformation was dominated by basal slip and twinning, whereas, increasing lithium content favored cross slip. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnesium, Mechanical Properties, Other |