Hydrogen Evolution Analyzed on Various Magnesium Alloys

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Abstract:

The purpose of this study was to evaluate the biodegradability of some magnesium alloys, different both from the point of view of chemical composition and different system (Mg-Ca, Mg-Zn-Ag). Microstructural characteristics of experimental magnesium alloys were investigated using optical microscopy and scanning electron microscopy coupled with energy dispersive X-ray. The hydrogen evolution was analyzed using the method proposed by Song. The assessment was made through the evaluation of hydrogen released rate in simulated body fluid (SBF) as proposed by Kokubo and his colleagues, maintaining the temperature at 37 °C, for 240 hours. The studied samples showed different degradation rates depending on the chemical composition of magnesium based alloys and function of immersion time.

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152-156

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May 2016

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