CORROSION BEHAVIOUR OF Mg-Zr ALLOY IN STIMULATED BODY FLUID

摘要

The Mg-Zr alloy is prepared through powder metallurgy method. The corrosion behavior of Mg-Zr alloy, with various sintering temperature, in stimulated body fluid was studied at 37°C, using immersion and electrochemical corrosion tests. The application of this study is the human body bone implants. The characterization of the alloy was carried out through optical microscopy, XRD (X-ray diffraction) and SEM (scanning electron microcopy). The obtained values reveal that, the crystallite sizes reduce by the increasing sintering temperatures and at the same time, the corrosion rates decrease significantly.