Friction Stir Welding Al-TiC Composite Produced by Accumulative Roll Bonding

The aim of this work is to demonstrate the feasibility of friction stir welding (FSW) for joining of Al-TiC composite. In this regard, the composite was manufactured by accumulative roll bonding (ARB) process after 10 cycles and subsequently were joined by FSW at the tool rotation speed of 560 rpm and welding speeds of 100 and 160 mm/min. The microstructural evolutions in the stir zone of the welded samples were investigated by scanning electron microscopy (SEM). It was revealed that in the stir zone of the sample by welding speed 100mm/min, TiC particles were uniformally imbedded in the aluminium matrix and had smaller average size after FSW, but tensile strength decreased due to grain growth caused by frictional heat of tool rotation.

Keywords:

Friction Stir Welding , Accumulative Roll Bonding , TiC , Aluminium Matrix Composite