Dynamic precipitation and enhanced mechanical properties of ZK60 magnesium alloy achieved by low temperature extrusion

In this study, dynamic precipitation was observed in ZK60 (Mg-6.0Zn-0.5Zr) alloy during low temperature extrusion. The microstructure and mechanical properties of the alloy were investigated for various extrusion temperatures (400 oC, 350 oC and 300 oC). Decreasing extrusion temperature resulted in an increased dynamic precipitation as well as grain refinement. With decreasing extrusion temperature from 400 oC to 300 oC, the grain size was...