Age hardenable nickel superalloy welding wires containing manganese

Abstract From the Canadian patent

A class of age hardenable nickel base alloys for use as filler wires in fusion welding superalloys is described. The alloys contain manganese in levels of from about .5 to 3 percent to greatly reduce the incidence of heat-affected zone cracking in the metal being welded. The weld filler alloys also contain significant amounts of aluminum titanium, tantalum, and columbium, and therefore the resultant welds can be age hardened to relatively high strength levels. Method for reducing cracking during fusion welding using above alloys are also disclosed.