Effect of addition of Al-Si eutectic alloy on microstructure and mechanical properties of Mg-12wt%Li alloy |
| |
| Authors: | Zilong Zhao Xuegang Xing Jinyu Ma Liping Bian Wei Liang Yide Wang |
| |
| Affiliation: | 1. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China;2. Shanxi Key Laboratory of Advanced Magnesium-Based Materials, Taiyuan, 030024, China;3. Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China |
| |
| Abstract: | Mg-12Li, Mg-12Li-3(Al-Si), Mg-12Li-7(Al-Si) and Mg-12Li-9(Al-Si) alloys (all in wt%) were fabricated by high frequency vacuum induction melting in a water cooled copper crucible. After subsequently hot-rolling and annealing, their microstructure and mechanical properties were investigated. Experimental results show that mechanical properties of Mg-12Li alloy were significantly improved by the addition of Al-Si eutectic alloy. Mg-12Li-7(Al-Si) alloy shows the highest strength of 196 MPa of the investigated alloys, which is about 1.8 times of the strength of Mg-12Li alloy, and maintains high elongation of 27%. The improved mechanical property with addition of Al and Si in the eutectic proportion into Mg-12Li alloy was attributed to the solution strengthening effect of Al and precipitation hardening effect from AlLi and Mg2Si precipitates. |
| |
| Keywords: | Al-Si eutectic Mg-12Li alloys Precipitation Strengthening Rolling |
| 本文献已被 CNKI ScienceDirect 等数据库收录！ |
|
