By using the nickel welding wire, the effect of alloying elements on the chilling tendency of partial fusions zone (PFZ) of arc-welded ferritic ductile iron and the mechanical properties of weld metal have been system...By using the nickel welding wire, the effect of alloying elements on the chilling tendency of partial fusions zone (PFZ) of arc-welded ferritic ductile iron and the mechanical properties of weld metal have been systematically studied. On this basis, a new nickel electrode for arc welding of ferritic ductile iron (QT400-17) was developed for the first time. The mechanical properties of its weld metal can match those of ferritic ductile iron. The width of carbide layer (WCL) in PFZ is significantly decreased, the welded joint has excellent machinability and the weld metal has high hot cracking resistance. (Edited author abstract) 3 Refs.展开更多
文摘By using the nickel welding wire, the effect of alloying elements on the chilling tendency of partial fusions zone (PFZ) of arc-welded ferritic ductile iron and the mechanical properties of weld metal have been systematically studied. On this basis, a new nickel electrode for arc welding of ferritic ductile iron (QT400-17) was developed for the first time. The mechanical properties of its weld metal can match those of ferritic ductile iron. The width of carbide layer (WCL) in PFZ is significantly decreased, the welded joint has excellent machinability and the weld metal has high hot cracking resistance. (Edited author abstract) 3 Refs.
