Nickel alloying of foil in brazed metal catalytic converter...

Details Nickel alloying of foil in brazed metal catalytic converter... Nickel alloying of foil in brazed metal catalytic converter...

C - Chemistry, Metallurgy

23

C

C23C 10/30 (2006.01) C23C 10/04 (2006.01)

Patent

CA 2490481

A method is provided for enhancing the crack resistance of an iron chromium aluminum foil by localized alloying of the structure. According to the method a continuous strip of amorphous nickel foil is placed on a surface of a sheet of iron chromium aluminum foil. The combined foil layers so formed are heated to a temperature sufficient to cause the amorphous nickel foil to diffuse into the iron chromium aluminum foil to an extent sufficient to yield a microstructure and composition having enhanced crack resistance as compared to unalloyed iron chromium aluminum foil.

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