Development of lightweight Mg-Li-Al alloys with high specific strength

作者：Park, Gyu Hyeon; Kim, Jeong Tae; Park, Hae Jin; Kim, Young Seok; Jeong, Hae Joon; Lee, Naesung; Seo, Yongho; Suh, Jin-Yoo; Son, Hyeon-Taek; Wang, Wei-Min; Park, Jin Man^*; Kim, Ki Buen^*

来源：Journal of Alloys and Compounds, 2016, 680: 116-120.

DOI：10.1016/j.jallcom.2016.04.109

• Mg-Li-Al alloys
• Specific strength
• Grain refinement
• Precipitation

The microstructure and compressive mechanical properties of squeeze tasted Mg-15Li-xAl (x = 0, 1, 3 and 5 wt%) alloys have been investigated. With addition of Aluminum (Al) in Mg-15Li alloy, the compressive yield strength is continuously increased and density is slightly decreased. This improved mechanical property is mainly attributed to the precipitation of Al-Li intermetallic compounds into the beta-phase and grain size refinement of beta-phase. Accordingly, lightweight and high specific strength Mg-Li-Al alloys were developed successfully via proper addition of Al contents, resulted from favorable microstructural evolution.

• 出版日期2016-9-25
• 单位山东大学