Vacuum brazing between TiC NiCr cermets and 1Cr13 stainless steel

Firm joints were obtained between TiC/NiCr cermets and 1Cr13 stainless steel with CuMnNi and CuMnCo fillers by vacuum brazing. Effects of fillers and brazing parameters on mechanical properties and microstructures of brazed joints were investigated. Results revealed that the maximum shear strength of brazed joints (338MPa) can be achieved at 1050℃ for 30min by the use of CuMnNi filler, and maximum value (274MPa)at 1050℃ for 60min by the use of CuMnCo filler.Brazed joints are fractured on cermets near the side of fillers. Excellent mutual solution was the main reason of achieving firm brazed joints. SEM, XRD were used to evaluated the joint microstructures and fracture morphology.