Study on Technology of High Temperature Brazing of Nb-1Zr and 1Cr18Ni9Ti in Vacuum

In order to joint Nb-1Zr alloy and 1Cr18Ni9Ti stainless steel, a series of brazing experiments with different technology parameters of BNi-5 brazing filler metal were carried out. After that, properties of brazing joint, including vacuum seal test, bear thermal shock test, microstructure of brazing seam and tensile strength test of brazing joint, were examined. The testing results show that brazing joint with BNi-5 filler metal has fine properties. At last, reasonable technology parameters were provided.