Abstrakt
The Mg-Y and Mg-Nd biodegradable mischmetal-free magnesium alloys were prepared by the powder metallurgy method. A modern spark plasma sintering technique was used to effectively produce almost fully dense samples from the gas-atomized powders.
Different sintering temperatures from 450 °C to 550 °C were used during the sintering compactization. The effect of the alloying elements and the effect of the sintering temperature on the microstructure and corrosion properties were investigated.
The microstructures of powders and compacted samples were characterized by scanning and transition electron microscopy. Corrosion properties of compacted samples were evaluated by immersion and electrochemical tests using NaCl solution.
Moreover, the results were compared and discused with those of the ternary magnesium alloy Mg-Y-Nd, prepared identically.