METHOD FOR MANUFACTURING MAGNESIUM ALLOY

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a magnesium alloy in which the occurrence of environmental pollutants can be prevented and cast texture can be fine-grained while maintaining the ductility of the magnesium alloy and improving simultaneously high-temperature strength. SOLUTION: SiC powder having SiO2 film on the surface of powder particles is directly added in an additive quantity of 0.1-10 mass % to the molten magnesium alloy. It is preferable to form the SiO2 film having a thickness of 1-10% of powder particle diameter by heating the SiC powder in the air.