METHOD FOR MANUFACTURING EXTRUDED MAGNESIUM ALLOY AND EXTRUDED MAGNESIUM ALLOY MANUFACTURED THEREBY

摘要

The present invention relates to a method for manufacturing an extruded magnesium alloy and an extruded magnesium alloy manufactured thereby. The present invention specifically relates to a method for manufacturing an extruded magnesium alloy which comprises a step (first step) of melting a starting material of a magnesium alloy; a step (second step) of casting the magnesium alloy starting material melted in the first step in order to prepare a magnesium alloy billet; a step (third step) of subjecting the magnesium alloy billet prepared in the second step to a homogenization treatment; a step (fourth step) of allowing the magnesium alloy billet homogenized in the third step to undergo compressive strain in the range of 3 to 20%; and a step (fifth step) of extruding the magnesium alloy billet which underwent compressive strain in the fourth step; and an extruded magnesium alloy manufactured thereby.