PROBLEM TO BE SOLVED: To provide a magnesium alloy raw material of a high Al content having excellent plastic workability, such as forging, a production method of the raw material, and a magnesium alloy formed body formed by subjecting the raw material to forging.;SOLUTION: The magnesium alloy raw material contains 7.5 to 10.5% Al by mass%, and consists of the balance Mg and impurities, wherein a critical upsetting ratio at 200°C is ≥50%. Such raw material can be obtained by subjecting a base material having the above composition to a solution heat treatment at over 350°C to ≤450°C, and drawing out the solution heat treated material, then subjecting the drawn material to annealing at ≥300 to ≤450°C.;COPYRIGHT: (C)2006,JPO&NCIPI
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