Microstructure-property correlation of extruded Mg2GdxAg alloysThursday (27.09.2018) 18:30 - 18:45 S1/03 - 23 Part of:
Due to biocompatibility and ability of biodegradation, the focus of Magnesium alloys as biodegradable implants is increasing. To develop a potential material, which is able to be a biodegradable implant, Mg-2Gd-1Ag and Mg-2Gd-2Ag are investigated. Furthermore, the alloys will be investigated due their possibility to be reshaped. Mg-2Gd-1Ag and Mg-2Gd-2AG have been cast, T4 heat treated (48 hours at 510° C) and investigated after indirect extrusion. The alloys are extruded at constant temperatures and with three different extrusion velocities. With respect to the analysis of microstructure, mechanical properties and degradation rates. It can be concluded that high extrusion velocity, increases grain size and has negative impact on mechanical properties. Due to T4 heat treatment there are no intermetallic phases except Gadolinium-hydrides. The degradation rate is in every case nearly the same. There is no change of the degradation rate neither with increasing silver content nor with higher extrusion velocities.