engleski

The effect of rotary swaging on the microstructure, mechanical and corrosion properties and cytotoxicity in vitro of the alloy Mg-1.0%Zn-0.7%Ca

The effect of rotary swaging (RS) on the structure, mechanical properties, corrosion resistance, biocompatibility and cytotoxicity in vitro of the alloy Mg- 1.0Zn-0.7Ca was studied. The average grain size decreased from 54.1±2.5 μm to 4.5±1.2 μm after RS. RS leads to increase in the strength (the yield strength and the ultimate tensile strength rose up to 210±8 MPa and 276±6 MPa after processing, respectively), without decrease in the tensile elongation. RS did not enhance the chemical corrosion rate of the alloy. Cytological assay showed that the alloy can induce hemolysis of red blood cells without inhibiting the viability of leucocytes. An interesting observation was the occurrence of specifi c antitumor activity of the alloy in vitro.

rotary swaging ; cytotoxicity ; mechanical properties ; corrosion properties ; microstructure properties

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