Fatigue behaviour of friction welded medium carbon steel and austenitic stainless steel dissimilar joints

► Fusion welding of dissimilar metals is a problem due to difference in properties. ► Solid state welding process such as friction welding is a solution for the above problem. ► Fatigue life of friction welded carbon steel and stainless steel joints are evaluated. ► Effect of notch on the fatigue life of friction welded dissimilar joints is reported. ► Formation of intermetallic is responsible for reduction in fatigue life of dissimilar joints.