The invention discloses a wrought
magnesium alloy containing
neodymium samarium light
rare earth elements and high Mn content and a preparation method of the wrought
magnesium alloy, and belongs to the field of wrought
magnesium alloy materials. The wrought
magnesium alloy comprises the following components of, in percentage by
mass, 0.30% to 1.90% of
calcium, 0.30% to 1.50% of aluminum; 0.20% to1.70% of
zinc; 0.30% to 2.80% of
manganese; 0.30% to 3.00% of light
rare earth (
samarium or
neodymium), and the balance of magnesium and inevitable impurities (Si, Ni, Cu and the like); and the preparation method of the
magnesium alloy comprises the following steps that a pure magnesium cast
ingot is melt firstly, after fully melting is carried out,
metal calcium,
manganese, light
rare earth (
samarium or
neodymium) and the like are added, after fully stirring is carried out,
casting into a cast
ingot is carried out, then homogenization treatment on the cast
ingot is carried out, and extrudingthrough a backward
extrusion process is carried out to obtain a corresponding extruded profile. According to the wrought
magnesium alloy containing neodymium samarium light rare earth elements and high Mn content and the preparation method of the wrought magnesium alloy, the novel wrought magnesium alloy with high strength and high
plasticity is prepared through
smelting, homogenization treatmentand subsequent
extrusion (backward
extrusion) processes, the strength and
toughness of the novel wrought magnesium alloy are enhanced, and the novel wrought magnesium alloy has good mechanical properties.