ali moeini - Graduate Student, Department ofMaterials Science & Engineering, Sharif University of Technology, Iran
Amirhossein Ahmadi Chadegani - Graduate Student, Department ofMaterials Science & Engineering, Sharif University of Technology, Iran
Masoud Atapour - Associate Professor, Department ofMaterials Science & Engineering, Isfahan University of Technology, Iran

Machine parts are produced by using various methods such as forging, machining,casting, and welding. The choice of production methods depends on the cost of production. In the meantime, friction welding has become very important due to the low production costs and the possibility of connecting parts of different materials. In this study, the microstructure and mechanical properties of rotary friction welding of ck45 to AISI 310 are evaluated. The results showed that with increasing forging pressure, the weld's hardness and strength increased, and the recrystallization region's length increased. The microstructure indicates areas of the base metal, the heat-affected zone, and the thermomechanical zone on both sides of the friction weld zone. Also, the highest hardness is obtained in the welding area.

Dissimilar Friction Welding ; AISI 310 steel ; Ck45 steel ; Friction time ; Forging pressure.