Abstract
In this work, the microstructural and mechanical properties of the certain magnesium-based alloys were investigated. The alloys were produced under a controlled atmosphere by a squeeze-casting process and characterized by optical microscopy (OM), scanning electron microscopy (SEM), an energy-dispersive spectrometer (EDS) and X-ray diffraction (XRD) analysis. The results indicated that the addition of strontium element modified the structure and refined the grain size. The hardness and yield strength of the alloys increased continuously with increasing strontium content, while the elongation was gradually decreased. Also, the tensile strength value of the based alloy was increased by adding Sr up to 1 wt.%. After more addition of Sr, the tensile strength starts to diminish.
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