|Spoluautoři DERMAN Serap, ACAR Serhat, HAZAR A. Binnaz, MANSUROGLU Banu|
In the recent years, magnesium and its alloys are widely used in different engineering fields for their low density and high specific strength. Biomedical aspects of magnesium alloys, especially in orthopedic applications, have been investigated owing to their biodegradability and good bio-compatibility for more than a decade.The mechanism of degradation of magnesium implants is based on corrosion in biological environment. However, magnesium alloys suffer from low corrosion resistance, especially in the aqueous solutions containing chloride compounds like human blood plasma with pH lower than 11. In this study, chemical processes and bio-corrosion behavior of AZ31 and AZ91D alloys were investigated in normal saline (NS) medium to determine the effects of increasing amount of aluminum. The results have shown that the corrosion rate could have been decreased with the addition of more aluminum to the Mg-Zn-Al alloys.