Investigation of Corrosion and Mechanical Properties of as-Cast Mg-3Sn-2Y-1Zn-0.6Ca Alloy

In this investigation, a pure magnesium ingot, tin, yttrium, zinc, and calcium granules were used to create the alloy Mg-3Sn-2Y-1Zn-0.6Ca. An electric resistance furnace was used to melt the alloy, and a gas combination with 4% sulfur hexafluoride and 96% argon was utilized to provide a protective environment. Scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) were used to analyze the generated alloy’s phase and explore its microstructure. By using nanoindentation analysis, the nanohardness value (HN) and the decreased elastic modulus (Er) of the alloy were calculated. The alloy underwent tensile testing at body temperature of 36.5 °C. Immersion and potentiodynamic polarization experiments were performed in a salt solution at 36.5 °C to measure the alloy’s corrosion resistance. As a result of corrosion tests, the steady-state corrosion potential (Ecorr) and polarization parameters of the alloy were obtained.