Abstract
Abstract The casting-solid extrusion forging plus semi-solid partial remelting route is used to improve the properties of AZ31 magnesium alloy products. The effect of remelting temperature and holding time on the microstructure of AZ31 magnesium alloy is studied. Furthermore, the properties of AZ31 magnesium alloy components produced by the casting-solid extrusion forging plus partial remelting route are examined. The results show that the AZ31 components have very good smooth surface and are formed completely. The increases in holding time and remelting temperature result in the formation of spheroidal grains surrounded by liquid phases. The best combination of properties of thixoforged alloy is 290 MPa of tensile strength, 220 MPa of yield strength and 10% of percentage elongation.
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