About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Light Alloys, Advanced Forming Processes and Characterization
|
| Presentation Title |
G-6: Effects of Trace Elements on Microstructure and Mechanical Properties of Dual-Phase Mg-Li Based Alloys |
| Author(s) |
Hyeon-Taek Son, Yong-Ho Kim, Byong-Gwon Lee, En-Chan Go |
| On-Site Speaker (Planned) |
Hyeon-Taek Son |
| Abstract Scope |
Among a variety of Mg alloys, Li addition in Mg alloys transforms the crystal structure from HCP to BCC with more slip systems. Moreover, when Li content is between 5.7 and 11wt%, Mg-Li alloys have two-phase structure that consists of the α-Mg and β-Li phases at room temperature. The addition of Li to Mg alloys with greater than that about 11wt% cause the crystal structure to transform to single BCC β phase. Therefore, Li addition in Mg alloys can significantly improve the formability.However, Mg-Li alloys have low strength and poor corrosion resistance, which is not beneficial for their application. In order to improve mechanical property, various alloying element have been added to Mg-Li alloy systems. In the present study, effects of trace elements on microstructure, strength and formability of dual-phase Mg-Li based alloys were investigated. |