Influence of welding parameters on microstructure and mechanical properties of friction stir welded Al-Mg2Si metal matrix composite

In this research, friction stir weldability of 20wt.% Mg2Si particulate aluminum matrix composite and effects of FSW process on the microstructure and mechanical properties of the joints were investigated. Mechanical properties including microhardness and tensile strength were evaluated in detail. The results showed fragmentation of Mg2Si particles and Mg2Si needles existing in eutectic structure in stir zone.Also, homogeneous distribution of Mg2Si particles was observed in the stir zone as a result of stirring with high plastic strains. This research indicates that friction stir welding is a good candidate for joining of 20 wt.% Mg2Si aluminum matrix composite

کلیدواژه ها:

Friction stir welding ، Microstructure ، Mechanical properties ، Al-Mg2Si metal matrix composite