NICKEL-BASED BRAZING MATERIAL COMPOSITION, METHOD OF BRAZING REPAIR, AND REPAIRED STRUCTURE

摘要

A Ni-based brazing composition at least containing, in mass %, 1.0% or more and 1.3% or less of B, 4.0% or more and 6.0% or less of Si, and the balance consisting of Ni and unavoidable impurities, wherein the brazing composition forms wherein the brazing composition forms dispersed phase containing B or Si in a metal texture after the brazing, and a maximum length of the dispersed phase is 30 µm or less.