Microstructure and charpy impact energy of aluminum based composites reinforced with 20% sio2 particles in friction stir welding

Friction stir welding (FSW) is a fairly recent technique that utilizes a non-consumable rotating welding tool to generate frictional heat and plastic deformation at the welding location, thereby affecting the formation of a joint while the material is in the solid state. The aim of the present research is to investigate the effect of friction stir welding processes on the microstructure and impact toughness of the aluminium composited reinforced with 20% sio2. Because of the severe deformation during this process the size of both reinforced particles and aluminium grain are affected. The result of impact test shows that the total energy is increased in the friction stir welding composites comparing with the base material.

کلیدواژه ها:

Aluminium ، Composite ، Friction stir welding ، Impact Energy