Microstructure and mechanical properties on aging behavior of Zn containing Mg–2Sn–0.4Mn alloy

The effects of Zn addition were examined by observing the microstructure and measuring the mechanical properties of Mg–xZn–2Sn–0.4Mn with different Zn contents. The addition of Zn to the Mg–2Sn–0.4Mn alloy caused the precipitation of secondary phases and an improvement in the mechanical properties. The aged alloys showed improved elongation at break, which led to a slight decrease in yield strength and ultimate strength. The results suggest that the formation of precipitates containing Zn affects the mechanical properties of the alloys.