Abstract
Friction stir processing (FSP) is a surface modification approach that may enhance microstructures, and remove processing flaws. Thereby to improve mechanical properties like strength, ductility, corrosion-resistant and fatigue, FSP was introduced. In this research, microstructural analysis, hardness, and optimization of developed magnesium hybrid composite were analyzed using process parameters i.e. tool tilt angle (10,20,30), %wt. of reinforcement (SiC/B4C), and rotational speed (600, 1000, 1400 rpm). High-speed steel (HSS) tool is used having a threaded pin with scrolled shoulder (TPSS). The results revealed that SiC and B4C particles are uniformly distributed in the Mg matrix. No defects were observed. To enhance the process variables, L9 orthogonal array was implemented. Weight percentage has more impact on hardness as compared to tool tilt angle and rotational speed. The acceptable mean value of hardness (µHD) is 90.35 HRB.
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