Ata Abednia - Student of material engineering, Shahid RajaeeTeacher Training University, Tehran, Iran
Mohammad Hasan Rajabi Delivand - Student of material engineering, Shahid RajaeeTeacher Training University, Tehran, Iran

In this research, Al۶۰۶۱ aluminum sheets and carbon nanotube particles were used at ۰, ۰.۱, ۰.۵, and ۱.۵ percent by volume, respectively, to produce FGM material by friction-stirring process, and important parameters such as rotational speed, tool traverse speed, The tool angle on the impact strength and microhardness of the manufactured composite was investigated. The process was carried out in the range of rotational speed of ۹۵۰, ۱۲۲۵ and ۱۵۰۰ rpm, traverse speeds of ۳۰, ۳۷.۵ and ۴۵ mm / min and angles of ۲, ۳, ۴ degrees and the mechanical properties and microstructure of the created composite were investigated. they got. To ensure the effectiveness of the parameters for the samples, the response surface design method has been used using Design Expert and Minitab software.By increasing the rotational speed and tool angle, the fracture energy decreases and by increasing the traverse speed, the fracture energy increases, and by increasing the rotational speed and tool angle, the hardness decreases, and by increasing the traverse speed, the hardness of the composite increases. Investigating the effect of nanotube percentage carbon on the hardness, showed that with the increase in the percentage of nanotubes, the hardness also increases.

Friction Stir Process, Composites ,Carbon Nanotubes, Functionally Graded Materials