Homogeneous, ductile cobalt based hardfacing foils

Details Homogeneous, ductile cobalt based hardfacing foils Homogeneous, ductile cobalt based hardfacing foils

B - Operations, Transporting

23

K

13/7

B23K 20/00 (2006.01) C21D 1/00 (2006.01) C21D 6/00 (2006.01) C22C 19/05 (2006.01) C22C 19/07 (2006.01) C22C 38/54 (2006.01) C22F 1/00 (2006.01)

Patent

CA 1167614

ABSTRACT HOMOGENEOUS, DUCTILE COBALT BASED HARDFACING FOILS Hardfacing of metal parts employing a thin, homogeneous, ductile foil is disclosed. The hardfacing foil has a composition consisting essentially of 0 to about 32 atom percent nickel, 0 to about 10 atom percent iron, 0 to about 30 atom percent chromium, 0 to about 2 atom percent tungsten, 0 to about 4 atom percent molyb- denum, about 5 to about 25 atom percent boron, 0 to about 15 atom percent silicon and 0 to about 2 atom per- cent manganese and 0 to 5 atom percent carbon the balance being cobalt and incidental impurities with the proviso that the total of iron, cobalt, nickel, chromium, tungsten and molybdenum ranges from about 70 to 88 atom percent and the total of boron, silicon and carbon ranges from about 12 to 30 atom percent. The ductile foil permits continuous hardfacing of soft matrix, like low carbon and low alloy steels, imparting superior resistance to wear and corrosion.

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