Abstract
FP-613 is a powder brazing filler metal with excellent corrosion resistance. There is a market need for a foil type brazing filler metal with a composition equivalent to FP-613. To form a foil, boron must be added. Boron can create a chromium deficient layer and deteriorated corrosion resistance. We investigated the corrosion resistance of test pieces brazed using a foil brazing filler metal containing boron. Even when 0.5mass%B was added to the foil type brazing filler metal having the composition of FP-613, the corrosion resistance was not affected. Therefore, it was found that a foil brazing filler metal with the composition of FP-613 containing 0.5mass%B could be used. This allows us to supply brazing filler metal with good corrosion resistance in a new form.
