Forming Magnesium Alloys With Improved Ductility

Abstract

A magnesium alloy comprising up to about one weight percent of cerium may be hot worked to produce an intermediate or final alloy workpiec that exhibits enhanced ductility at room temperature. The addition of a small amount of cerium may affect the magnesium alloy by reducing yield strength, refining grain size, and improving the work hardening behavior. Recrystallization during hot deformation of the rare earth containing magnesium material alters the texture of the alloy and orients the grains in a manner that favors basal slip activity. The alloy thus deforms at room temperature by a combination of twinning and slip mechanisms.


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Document History
  • Publication: Jan 29, 2009
  • Application: May 30, 2008
    WO US 2008/0065252 W
  • Priority: Jul 26, 2007
    US US 95201807 P

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