Dissolution and Deposit of Base Metal in Brazing to Dissimilar Materials and its Application (Part 2)

Abstract

In copper brazing of steels containing different quantities, respectively, of carbon under the narrow clearance, the columnar deposit of iron develops from high carbon steel to low carbon one in molten copper filler metal at a constant brazing temperature and finally links both steels by the dissolution and deposit of base metal.
Consequently, the shear strength of the joint increases remarkably up to the strength of steel. Longer holding time, narrower joint clearance and larger difference of carbon content, higher shear strength is.