Effects of Zn and Ca Additions on Microstructure and Mechanical Properties of Mg–11Li Based Alloys

Effects of annealing temperature on microstructure and mechanical properties of LZ91 alloy

“…As one of the strengthening elements, Zn not only improves the stress corrosion sensitivity but also enhances the fatigue limit of Mg-Li alloy [13]. Kim et al [14] reported that the addition of Zn promoted the formation of intermetallic compounds, resulting in the refinement of grain size and the increase in the strength of Mg-11Li alloy but not decreasing its elongation. Chang et al [15] researched the mechanical properties and microstructures of different Mg-Li alloys containing Li (9 wt-%, 11 wt-%) alloying with Zn, Al and Mn elements; the research showed that LZ91 alloy had the greatest tensile strength.…”

“…Kim et al. [14] reported that the addition of Zn promoted the formation of intermetallic compounds, resulting in the refinement of grain size and the increase in the strength of Mg–11Li alloy but not decreasing its elongation. Chang et al.…”

Microstructure and mechanical properties of Mg–8Li–xAl–0.5Ca alloys

“…However, the mechanical properties of Mg–9Li– x Ca alloys were not greatly improved by the addition of Ca. Kim et al [16] reported the microstructure and mechanical properties of as-extruded Mg–11Li–0.4Ca alloy, the ultimate strength and elongation of the extruded specimens reached 130 MPa and 44%, respectively. Wang et al [17] investigated the microstructure and mechanical properties of as-cast and as-extruded Mg–5Li–3Al– x Ca alloys, and found that the mechanical properties of the alloys dropped sharply when the Ca content exceeded 0.5%.…”