| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Late News Poster Session
|
| Presentation Title |
E-39: Effect of Fine Precipitates on the Mechanical Properties of Lightweight Mg-Li Alloy with Rare Earth Addition |
| Author(s) |
Yong-Ho Kim, Byeong-Kwon Lee, Eun-chan Ko, Hyeon-Taek Son |
| On-Site Speaker (Planned) |
Hyeon-Taek Son |
| Abstract Scope |
Magnesium alloys are attractive as structural materials for transportation systems, electrical components, and provide excellent damping with low density (1.74 g/cm3) and high strength-to-weight ratio. However, the hexagonal close-packed (HCP) structure limits the use of Mg due to insufficient plasticity. Therefore, it is an important problem in the development of a new Mg alloy with high formability and improved production capacity. Among Mg alloys, when Li is added to the Mg alloy system, the crystal structure changes to body-centered cubic(BCC) along with HCP, resulting in more slip systems. In this study, Mg-10wt.%Li-1wt.%Al-1wt.%Zn alloys adding with RE(rare earth) were extruded at 200 °C. The effect of RE addition on the microstructure and mechanical properties of the extruded alloy was investigated. In order to improve mechanical properties, a sample was additionally prepared through a rolling process. Differences in tensile properties depending on the RE content were investigated by metallographic observation. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Magnesium, Characterization, Mechanical Properties |