Effects of Ag addition on microstructures and mechanical properties of Mg–6Zn–2Sn–0.4Mn-based alloy system

We investigated the effects of Ag addition on the microstructure and mechanical properties of hot-extruded Mg–6Zn–2Sn–0.4Mn-based alloys. Ag addition resulted in the formation of fine submicron-sized Mg–Ag particles, grain refinement, and weaker basal texture in the alloys. The Ag-containing extruded alloys had better mechanical properties than the alloys without Ag. The ultimate tensile strength (UTS) and elongation of alloys containing 1 wt.% Ag were 352 MPa and 19%, respectively.

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► Ag addition resulted in the formation of fine submicron-sized Mg–Ag particles.
► Ag addition resulted in the grain refinement and weaker basal texture.
► The Ag-containing extruded alloys had better mechanical properties.
► The strength and elongation of alloys containing 1 wt.% Ag were 353 MPa and 19%.