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MIM Processing Of Complex Mg-Alloys

  • : Johannes Schaper1, Martin Wolff1, Thomas Ebel1, Regine Willumeit-Römer1, Michael Dahms2
  • : 1Helmholtz-Zentrum Geesthacht, 2Flensburg University of Applied Sciences
  • : PDF Download
  • : 2017


Ongoing investigations have highlighted Mg-alloys as highly suitable for powder metallurgy (PM) processing regarding medical and lightweight 3C applications. In particular, metal injection moulding (MIM) possesses high potential for near net shape mass production of small sized and complex shaped parts. Previous developments have been conducted successfully by pressing and sintering, as well as MIM processing using pure Mg and Mg-Ca alloys. However, aiming towards medical and other applications more complex alloys are of great interest. Therefore, conventional Mg alloys like AZ81 and a quaternary Mg-RE-Zn alloy are tested for their implementation into the MIM process in this work. Using AZ81, tensile strength of 215 MPa and elongation around 5% was achieved with a reduced sintering time of 4 hours in contrast to 64 hours for Mg and Mg-0.9Ca. In addition, the possibility of simplifying the crucible setup and omitting the getter material are highlighted.


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