Influence of different production processes on the biodegradability of an FeMn17 alloy

Abstract

The purpose of this research was to evaluate the biodegradability of a cast FeMn17 alloy that was processed by hot rolling and annealing, which influenced both the mechanical and corrosion properties of the FeMn17 alloy. The corrosion behaviour and in-vitro biodegradability were investigated by light microscopy, scanning electron microscopy, X-ray diffraction and immersion tests in Hank's solution. Compared to pure Fe, the cast FeMn17 alloy has a better biodegradability (higher corrosion rate). We showed that hot rolling additionally improves the biodegradability, while the annealing process lowers the biodegradability of the FeMn17 alloy.