|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Magnesium-based Biodegradable Implants
||Magnesium Powder Injection Molding (MIM) of Orthopedic Implants for Biomedical Applications
||Martin Wolff, Johannes Schaper, Marc Rene Suckert, Michael Dahms, Thomas Ebel, Regine Willumeit-Römer, Thomas Klassen
|On-Site Speaker (Planned)
MIM possesses high potential for the economic near net shape mass production of small sized and complex shaped parts. The motivation for launching magnesium into the MIM processing chain for the manufacturing of biodegradable medical implants is related to its compatibility with human bone and its degradation to nontoxic matter. It has been recognized that the load bearing capacity of MIM-magnesium parts is superior to that of biodegradable polymeric ones. However, the choice of appropriate polymeric binder components and alloying elements enabling defect free injection molding and sintering is the major challenge. This study comprised the full processing chain for MIM of Mg-Ca alloys to achieve UTS up to 141 MPa at 73 MPa TYS, 7 % elongation at fracture and 38 GPa Young´s modulus. To achieve the latter material properties, a thermal debinding study was performed to determine optimal furnace and atmosphere conditions, correct temperature, heating rates, time, and pressure.
||Planned: A combination print-CD volume