Abstract
The Aluminium alloy A356 alloy is primarilyusually used for automobile and aerospace components owing to its high strength to weight ratio, and its relatively good corrosion resistance. The effectiveness of the economical stir casting method was investigated by adding the strontium (Sr) metal uniformly to aid in the modification of the alloy’s eutectic morphology for improved mechanical properties. The addition of ̴0.63 wt% Sr addition resulted into grain refinement which improved the mechanical properties whereby the ultimate tensile strength (UTS) increased from 200 MPa to 250 MPa, Yield strength increased from 85 MPa to 100 MPa and the microhardness was increased from 74.94 Hv to 87.10 Hv.
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