Investigations of the friction welding of Incoloy MA 956 alloy

Friction welded similar material (work hardened and thermally treated) alloy Incoloy MA 956 joints and Incoloy MA 956 alloy/austenitic steel X10CrNiTi 189 joints were tested. The microstructures, microhardness and tensile strength of the joints were determined. Optimum friction welding process parameters were matched. Friction welding has been found to be useful for joining Incoloy MA 956 alloys together and for joining the latter with austenitic steel X10CrNiTi 189.