Method for producing high-strength magnesium alloy material and magnesium alloy rod
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United States of America Patent
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Feb 21, 2017
Grant Date -
May 29, 2014
app pub date -
Jun 19, 2012
filing date -
Jun 28, 2011
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Abstract
A method for producing a high-strength magnesium alloy material includes (a) a step of preparing a magnesium alloy workpiece having a top face and a side face; and (b) a step of applying a compressive load σp (MPa) from the top face side of the workpiece and performing a uniaxial forging process on the workpiece. Step (b) is performed while suppressing deformation of the workpiece widening outward and under conditions including (i) σp>σf (where σf is the compressive breaking stress (MPa) of the workpiece); (ii) a plastic deformation rate is less than or equal to 10%, and (iii) a strain rate is less than or equal to 0.1/sec.
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