Homogeneous, ductile nickel-palladium brazing foils

Details Homogeneous, ductile nickel-palladium brazing foils Homogeneous, ductile nickel-palladium brazing foils

C - Chemistry, Metallurgy

22

C

75/1.1

C22C 19/03 (2006.01) B23K 35/02 (2006.01) B23K 35/30 (2006.01) B23K 35/32 (2006.01)

Patent

CA 1181263

ABSTRACT HOMOGENEOUS, DUCTILE NICKEL-PALLADIUM BASED BRAZING FOILS Brazing of metal parts employing a homogeneous, ductile filler metal foil is disclosed. The brazing foil, useful for brazing iron, nickel and cobalt base alloys, has a composition essentially of 1 to about 41 atom percent palladium, 0 to about 20 atom percent chromium, 11 to about 20 atom percent boron and the balance essentially nickel and incidental impurities. In addition to containing the foregoing elements within the above noted composition ranges, the composition must be such that the total of nickel, palladium and chromium ranges from about 80 to 89 atom percent and the total amount of boron constitutes the remainder that is 11 to 20 atom percent. The ductile foil permits fabrica- tion of preforms of complex shapes and do not require binders or fluxes.

393616

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