The Effect of Mangan on Hardness and Corrosion Rate of Biodegradable Implants of Zn-Mn Alloy

Abstract

Zn-based biodegradable implants were still relatively new, and much development was needed. This study added varying amounts of Mn to Zn alloys and analyzed their effect on corrosion rate. Corrosion testing was conducted electrochemically with a polarization test. The alloys were characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The effect of the additional Mn content was also observed through a hardness test. Zn-25Mn alloy had the lowest corrosion rate. The alloy, with the addition of certain levels of Mn, experienced the formation of the intermetallic phase MnZn13, which improved the mechanical properties and corrosion rate. This research provided insights into the biocompatibility of a biodegradable implant through in vivo and in vitro testing, allowing for further development of its results.